Displaying publications 1 - 20 of 56 in total

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  1. Ahmad MS, Razak IA, Borromeo GL
    J Dent Educ, 2014 Aug;78(8):1154-61.
    PMID: 25086148
    Meeting the oral health care needs of the growing population of people with special health care needs (SHCN) starts with dental students' acquisition of sound knowledge and development of clinical competence at the predoctoral level. The aim of this study was to review the level of undergraduate education in Special Needs Dentistry (SND) in Malaysian and Australian dental schools. The deans of all six Malaysian public dental schools and eight of nine Australian dental schools participated in a postal survey on current undergraduate didactic and clinical training in SND at their institutions. The results showed the number of dental schools in Malaysia with teaching in SND as a specific discipline was relatively low compared to that of Australia. However, a high percentage of Malaysian and Australian dental schools reported incorporating teaching of SND into pediatric dentistry (83.3 percent vs. 75 percent), oral medicine/oral pathology (66.7 percent vs. 75 percent), and oral surgery (66.7 percent vs. 25 percent). Most respondents said their school delivered SND clinical training in dental school clinics, hospital-based settings, and residential aged care facilities. Respondents in both countries viewed lack of faculty expertise as the greatest barrier to providing SND education. The study provides valuable information that can direct SND curriculum development in the two countries.
  2. Ahmad MS, Razak IA, Borromeo GL
    Eur J Dent Educ, 2015 Feb;19(1):44-52.
    PMID: 24779684 DOI: 10.1111/eje.12101
    A compromised oral health condition amongst patients with special health care needs (SHCN) has been associated with the reluctance and shortage of skills of dental professionals in managing such patients. Lack of training and experience at the undergraduate level are reported barriers to the provision of care for this patient cohort. Undergraduate education therefore, plays an important role in producing professionals with the knowledge, skills and positive attitude in treating patients with SHCN. This study aims to determine the level of knowledge, comfort and attitudes of Malaysian undergraduate dental students towards caring for patients with SHCN, as well as their perception on education in this field. A self-administered questionnaire was administered in the classroom style to final year undergraduate dental students in Malaysian public dental schools. Most students were aware of Special Needs Dentistry (SND) as a specialty after being informed by academic staff. The majority of the students demonstrated poor knowledge in defining SND and felt uncomfortable providing care for such patients. They perceived their undergraduate training in SND as inadequate with most students agreeing that they should receive didactic and clinical training at undergraduate level. A high percentage of students also expressed interest in pursuing postgraduate education in this area of dentistry despite the lack of educational exposure during undergraduate years. The study supports a need for educational reform to formulate a curriculum that is more patient-centred, with earlier clinical exposure in various clinical settings for students to treat patients with special health care needs, applying the concept of holistic care in a variable clinical condition.
  3. Omar AF, Mokhtar IW, Ahmad MS
    J Int Soc Prev Community Dent, 2023;13(2):148-156.
    PMID: 37223444 DOI: 10.4103/jispcd.JISPCD_234_22
    AIMS AND OBJECTIVES: A "caregiver" is responsible for managing the basic needs of others, including individuals with special needs (IWSNs). Caregivers play an important role in the well-being of IWSNs, though caring can lead to a decline in health and quality of life. This qualitative study aimed to investigate the perceived healthcare challenges faced by caregivers of IWSNs in Malaysia.

    MATERIALS AND METHODS: Thirty-two primary caregivers were interviewed via audio-recorded semistructured focus group discussions to investigate their perceived barriers and challenges in caring for IWSNs. The qualitative data were then analyzed via thematic analysis.

    RESULTS: Thirty-two participants took part in a total of nine discussion sessions, where the majority were females (n = 29; 90.63%) and from the Malay race (n = 30; 93.75%). Most of the IWSNs under their care had autism (n = 11; 34.38%) and were between 6 and 10 years of age (n = 13; 40.63%). The main themes identified were related to healthcare services, support systems, caregivers' personal factors, and IWSN issues. Within the healthcare services domain, themes regarding the accessibility and appropriateness of healthcare facilities and the attitudes of staff were uncovered, whereas in the support system domain, themes pertaining to community and peer, family, and governmental support were discussed. In the domain of caregivers' personal factors, themes regarding stress with the burden of care and feelings of guilt were noted, and in the area of IWSN factors, the theme of behavioral difficulties exhibited by IWSNs was discussed.

    CONCLUSION: Primary caregivers in Malaysia face challenges with healthcare facilities and staff, gaining support from the community, family, and government, burning out, and feeling guilty as well as behavior issues of their IWSN. Thus, understanding these challenges is vital in providing healthcare services that cater to not only IWSNs but also their caregivers to ensure the success and well-being of all involved.

  4. Mahmoud MA, Ahmad MS, Yusoff MZ, Mustapha A
    ScientificWorldJournal, 2014;2014:684587.
    PMID: 25110739 DOI: 10.1155/2014/684587
    Norms and normative multiagent systems have become the subjects of interest for many researchers. Such interest is caused by the need for agents to exploit the norms in enhancing their performance in a community. The term norm is used to characterize the behaviours of community members. The concept of normative multiagent systems is used to facilitate collaboration and coordination among social groups of agents. Many researches have been conducted on norms that investigate the fundamental concepts, definitions, classification, and types of norms and normative multiagent systems including normative architectures and normative processes. However, very few researches have been found to comprehensively study and analyze the literature in advancing the current state of norms and normative multiagent systems. Consequently, this paper attempts to present the current state of research on norms and normative multiagent systems and propose a norm's life cycle model based on the review of the literature. Subsequently, this paper highlights the significant areas for future work.
  5. Abdul Rahim A, Ismail S, Ahmad Tajudin LS, Ahmad MS
    Med J Malaysia, 2013 Aug;68(4):338-42.
    PMID: 24145263 MyJurnal
    There are limited data in the literature on the optic disc topography in normal tension glaucoma (NTG) patients in Asian countries, especially in Southeast Asia. This study is aimed at comparing optic disc topography in NTG patients and a control group in Malaysia, and we discuss the literature on NTG studies in other Asian populations. A comparative cross-sectional study was conducted in two hospitals with glaucoma services in Malaysia from November 2010 to February 2012. A total of 109 eyes of 109 Malay patients were included in this study: 32 NTG patients and 77 subjects in the control group. All participants underwent a thorough ocular examination, including visual acuity, subjective refraction, anterior segment and fundus examinations, Humphrey visual field 24-2, intraocular pressure measurement, gonioscopy examination and fundus photography. Optic disc topography was assessed using the Heidelberg Retinal Tomograph III by an identified masked investigator in each hospital. NTG patients had a notably larger disc area (2.65 (0.41) vs 2.19 (0.43) mm(2), respectively), larger cupping (1.54 (0.43) vs 0.63 (0.40) mm(2), respectively), smaller retinal rim areas (1.12 (0.41) vs 1.56 (0.33) mm(2), respectively), higher cup volume (0.47 (0.28) vs 0.11 (0.19) mm(3), respectively), reduced rim volume (0.23 (0.13) vs 0.41 (0.16) mm(3), respectively), higher cup to disc area ratio (0.58 (0.14) vs 0.27 (0.15), respectively), higher linear cup to disc ratio (0.76 (0.09) vs 0.49 (0.17) mm(2), respectively), higher mean cup depth (0.37 (0.09) vs 0.22 (0.09) mm, respectively), higher maximum cup depth (0.77 (0.16) vs 0.59 (0.20) mm, respectively), higher mean of cup shape measure (-0.04 (0.06) vs -0.16 (0.07), respectively), and thinner mean retinal nerve fibre layer thickness (0.15 (0.15) vs 0.24 (0.07) mm, respectively) compared to the control group (p<0.05). In conclusion, most of the optic disc parameters were significantly different in NTG patients compared to healthy individuals in Malaysia. Our findings are comparable to those reported in NTG studies in other Asian countries.
  6. Ahmad MS, Md Yusoff MM, Abdul Razak I
    PMID: 22299483
    This study was conducted to identify the prevalence of stress, types of stressors, consequences of stress and stress relievers among undergraduate dental students at the University of Malaya during the different years of study. A descriptive cross-sectional quantitative study was conducted using a self-administered questionnaire among Bachelor of Dental Surgery students during Years 2 to 5. A 100% response rate was obtained. The instrument asked questions about the preceding academic year. The results of the questionnaire reveal the prevalence of stress was 100%. The most common cause of stress among preclinical students was academic concerns and among clinical students was patient management and clinical performance. Physical and behavioral problems were reported as consequences of stress. Most students overcame stress by having strong interpersonal relationships.
  7. Mohiuddin M, Arbain D, Islam AK, Ahmad MS, Ahmad MN
    Nanoscale Res Lett, 2016 Dec;11(1):95.
    PMID: 26887579 DOI: 10.1186/s11671-016-1292-1
    A biosensor for measuring the antidiabetic potential of medicinal plants was developed by covalent immobilization of α-glucosidase (AG) enzyme onto amine-functionalized multi-walled carbon nanotubes (MWCNTs-NH2). The immobilized enzyme was entrapped in freeze-thawed polyvinyl alcohol (PVA) together with p-nitrophenyl-α-D-glucopyranoside (PNPG) on the screen-printed carbon electrode at low pH to prevent the premature reaction between PNPG and AG enzyme. The enzymatic reaction within the biosensor is inhibited by bioactive compounds in the medicinal plant extracts. The capability of medicinal plants to inhibit the AG enzyme on the electrode correlates to the potential of the medicinal plants to inhibit the production of glucose from the carbohydrate in the human body. Thus, the inhibition indicates the antidiabetic potential of the medicinal plants. The performance of the biosensor was evaluated to measure the antidiabetic potential of three medicinal plants such as Tebengau (Ehretis laevis), Cemumar (Micromelum pubescens), and Kedondong (Spondias dulcis) and acarbose (commercial antidiabetic drug) via cyclic voltammetry, amperometry, and spectrophotometry. The cyclic voltammetry (CV) response for the inhibition of the AG enzyme activity by Tebengau plant extracts showed a linear relation in the range from 0.423-8.29 μA, and the inhibition detection limit was 0.253 μA. The biosensor exhibited good sensitivity (0.422 μA/mg Tebengau plant extracts) and rapid response (22 s). The biosensor retains approximately 82.16 % of its initial activity even after 30 days of storage at 4 °C.
  8. Ahmad MS, Mokhtar IW, Khan NLA
    J Int Soc Prev Community Dent, 2020 05 18;10(3):323-328.
    PMID: 32802779 DOI: 10.4103/jispcd.JISPCD_74_20
    Context: Oral health inequalities experienced by patients, including people with disabilities (PWD), have been related to dentists' lack of professionalism and inadequate experience in managing patients with special needs.

    Aims: This study investigated the impact of an extramural program involving PWD on dental students' professionalism and students' perception of training in managing patients with special needs.

    Materials and Methods: A group of 165 undergraduate dental students (year 1 to year 5) participated in a voluntary program, involving 124 visually impaired children, at a special education school in Kuala Lumpur, Malaysia. A dedicated module in oral health was developed by specialists in special care dentistry, pedodontics, and medical sciences. Dental students then participated in a semi-structured focus group interview survey to discuss perceptions of their learning experiences. Qualitative data were analyzed via thematic analysis.

    Results: The program had positive impact on various aspects categorized into four major domains: professional knowledge (e.g., understanding of oral-systemic-social-environmental health interaction and understanding of disability), professional skills (e.g., communication and organizational skills), professional behavior (e.g., empathy and teamwork), and value-added learning (e.g., photography and information technology skills). Students showed improved willingness to manage, and comfort in managing PWD, and expressed support for future educational programs involving this patient cohort.

    Conclusion: Improved knowledge, skills, attitudes, and personal values, as well as support for future programs, indicate the positive impact of extramural educational activities involving PWD in developing professionalism in patient care, while providing an opportunity for students to be exposed to managing patients with special needs.

  9. Ali NM, Husin IN, Ahmad MS, Hamzah SH
    Eur J Dent Educ, 2021 Feb;25(1):18-27.
    PMID: 32767612 DOI: 10.1111/eje.12573
    OBJECTIVES: Behavioural guidance (BG) training is an important component of preparing future dentists to manage paediatric patients, who often exhibit cooperation issues during treatment. This study investigated the acceptance of various BG techniques amongst dental students in a Malaysian institution.

    METHODOLOGY: A paper-based survey was conducted, classroom-style, on all dental students (Year 1 to Year 5, n = 336, response rate = 84.5%) using a validated questionnaire, developed from previous literature. For each BG technique, students used a visual analogue scale to mark their acceptability score; this figure was later categorised into different acceptance levels. Students' mean acceptability scores and acceptance of each BG technique were consecutively analysed via independent t test and chi-square test (significance level, P  0.01). Percentages of those who accepted communicative techniques involving parents demonstrated significant differences across subjects of different academic years, between pre-clinical and clinical groups of respondents and amongst clinical students. Other techniques with such significant differences, along with low acceptance, included modelling, voice control and disallowing the child to speak.

    CONCLUSION: The findings of this study provide useful information for curricular enhancement aimed at equipping dental students with the ability to apply appropriate and effective BG techniques during patient care.

  10. Faisal A, Ahmad MS, Thurasamy R, Ahmed R
    Community Ment Health J, 2020 Apr;56(3):456-463.
    PMID: 31728716 DOI: 10.1007/s10597-019-00501-w
    Using theory of planned behaviour, this study seeks to examine the effect of health practitioner's interaction with pharmaceutical sales representatives on their prescription behaviour. Data was collected from 248 health practitioners working in the city of Attock and from five Tehsils of Attock District through questionnaires with a net response rate of 82%. The hypothesis was tested by PLS Path Modelling. The major findings of the study were that physicians' interactions with pharmaceutical sales representatives in terms of market knowledge, product knowledge, corporate reputation and tangible rewards affect the prescription behaviour of physicians directly as well as through the mediating effect of the attitudinal component. The findings of the study would be helpful for the pharmaceutical industry as well as for drug regulatory authorities and health policy makers towards unethical practices in the medical field. Study provided practical implications for policy makers and health practitioners. Moreover, future directions for research were also provided.
  11. Masud H, Ahmad MS, Cho KW, Fakhr Z
    Community Ment Health J, 2019 08;55(6):1015-1030.
    PMID: 31102163 DOI: 10.1007/s10597-019-00400-0
    There is ample research on aggression amongst children and adolescents that highlights several antecedents of aggression. While researchers have remarked on the relationship between parenting styles and aggression in children, there are few studies that integrate and systemize the available studies on parenting styles and aggression. The present review is an attempt to fill this gap. For this review, relevant studies were first searched, then coded and classified. As a result of thorough review, 34 relevant studies were identified. The review shows that parenting styles have a direct impact on aggression in children. Authoritative parenting styles play a positive role in psychological behavior in children while authoritarian and permissive parenting styles result in aggressive and negative behaviors in children. The current study also suggests that there is room to conduct studies on this topic in developing countries. Future research should be undertaken in developing and under-developed countries and should focus on mixed modes of research and examine the direct influence of parenting styles on aggressive behavior in children in different cultural contexts.
  12. Utami M, Setiawati F, Ahmad MS, Adiatman M
    Spec Care Dentist, 2022 Feb 13.
    PMID: 35152463 DOI: 10.1111/scd.12702
    AIMS: To translate and evaluate the validity and reliability of the Indonesian version of the Theory of Planned Behavior (TPB) questionnaire concerning mother's behavior related to children's dental attendance.

    METHODS AND RESULTS: The cross-cultural adaptation was tested in mothers with children aged 5-12 years old who have hearing loss. The validity and reliability of the online questionnaire were measured among 31 mothers of children with hearing loss in communities and Special School for Children with Hearing Loss in several regions in Indonesia. All indicators of attitude, subjective norms, and perceived behavior control (PBC) on mothers' behavior towards children's attendance was valid (p 

  13. Borromeo GL, Ahmad MS, Buckley S, Bozanic M, Cao A, Al-Dabbagh M, et al.
    Eur J Dent Educ, 2018 Aug;22(3):e321-e326.
    PMID: 29024268 DOI: 10.1111/eje.12296
    INTRODUCTION: The role of dental auxiliaries in collaborative care of patients with special needs is compelling. This study was undertaken to investigate the perceptions of Special Needs Dentistry (SND) education and practice amongst students enrolled in Australian programmes in dental auxiliary, namely dental hygiene, dental therapy and oral health therapy (DH/DT/OHT).

    MATERIALS AND METHODS: All Australian institutions offering DH/DT/OHT programmes (n = 14) were invited to participate in a self-administered questionnaire survey, conducted online, involving students across all academic years. Twelve institutions agreed to participate, but only five institutions were included in the final analysis, with a student response rate of 31.1%. Answers to open-ended questions were coded and grouped for measurement of frequencies. Quantitative data were analysed via chi-squared and Fisher's exact tests (significance taken as P 

  14. Mohamed Rohani M, Ahmad Fuad N, Ahmad MS, Esa R
    Eur J Dent Educ, 2022 Nov;26(4):741-749.
    PMID: 34939257 DOI: 10.1111/eje.12756
    INTRODUCTION: Special Care Dentistry (SCD) education has been introduced in Malaysia, but there are limited number of studies about its impact to students. Thus, this study aimed to explore the level of students' readiness to treat people with learning disability (PWLD) based on their attitudes, self-efficacy and intention to treat.

    METHODS: A questionnaire was developed based on the Dental Student Attitude to the Handicapped Scale, Scale of Attitudes to the Disabled Persons and Health Action Process Approach. The self-administered, validated questionnaire was tested for reliability (Cronbach's alpha = .71-.81), before being distributed to clinical dental students of both genders from two universities (University A, n = 176 and University B, n = 175). Quantitative data were analysed via t test and ANOVA (p 

  15. Ali M, Ullah S, Ahmad MS, Cheok MY, Alenezi H
    Environ Sci Pollut Res Int, 2023 Feb;30(9):23335-23347.
    PMID: 36322356 DOI: 10.1007/s11356-022-23811-1
    Social media is playing a vital role in the promotion of green products by reshaping the millennial green purchasing intention and green consumption behaviors, resulting in progressive growth toward sustainable environment and lower carbon emission. Non-organic consumption among humans has increased the carbon emission in contrary risked environment; therefore, consumption behavior and purchasing intention are required to change for better sustainable environment. This study's goal is to determine the effects of social media in molding the consumption behaviors while considering eco-labeling, eco-branding, social norms, and purchase intensions among millennials to promote green consumption and lower carbon emission. It was decided to use a cross-sectional questionnaire survey to get information from the students of different faculties including social sciences, engineering, and bio-sciences. SPSS.V.22 and Smart-PLS were used to analyzed the data. Results indicated that social media has a profoundly good impact on molding and impacting youth behaviors regarding the green consumption, resulting in increasing intention toward sustainable environment which results in lower carbon emission. The results are in line with the predictions and contextual analysis, as the whole world is coming back toward natural life and is working for environmental protection and sustainability specially to lower the carbon emission. Therefore, students are molding themselves toward green consumption. The study recommends that future research may be conducted to study more contextual variables, who has influence on the green consumption among the general public regarding green consumptions and lowering carbon emission and stepping toward the sustainable environment.
  16. Utami M, Setiawati F, Ahmad MS, Adiatman M
    Int J Paediatr Dent, 2023 May;33(3):259-268.
    PMID: 36336994 DOI: 10.1111/ipd.13036
    BACKGROUND: Maintenance of oral health of children with special needs requires the involvement of caregivers who are also responsible for ensuring adherence to professional recommendations, including dental visits.

    AIM: This study aimed at exploring the correlates of dental visits of children with hearing loss (CWHL) in Indonesia using the theory of planned behaviour (TPB).

    DESIGN: This cross-sectional study involved purposive sampling methods, conducted via an online survey administered to mothers of CWHL who were aged 5-12 years. Constructs of the TPB model were collected, including the mother's attitudes, subjective norms, perceived behaviour control (PBC) and intention towards dental visits for CWHL. Dental visits were measured by asking whether their children had a dental visit within the last 12 months. Data were analysed using SPSS for descriptive and bivariate analyses. The significance level was set as p  .05). Intention did not significantly predict the mother's behaviour towards children's dental visits (p > .05).

    CONCLUSION: The TPB model revealed a construct associated with dental visit intention and behaviour in CWHL. This study suggested that effective promotion intervention should focus on the mother's PBC to increase parents' adherence to preventive dental visits in CWHL in Indonesia.

  17. Khan AJ, Ahmad MS, Sabri BAM
    Spec Care Dentist, 2023 Nov 14.
    PMID: 37964052 DOI: 10.1111/scd.12940
    INTRODUCTION: Individuals with visual impairment (VI) are doubly disadvantaged by their lack of vision and poor oral hygiene (OH). Implementing oral health education (OHE) interventions should be set as goals to improve OH status and prevent oral diseases. However, few studies have examined the specific teaching method of OH skills. This study aimed to identify the most influential OHE interventions enabling individuals with VI worldwide, especially those in countries where VI is most frequent, to maintain OH and improve knowledge and practices.

    METHODS: An extensive literature review was conducted using the Preferred Reporting Items for Systematic Review and Meta-Analysis method. This study systematically searched electronic databases (PubMed via Medline, Cochrane, Embase, and Google Scholar) using expert-validated keywords, complemented by manual searches, to identify relevant articles published between April 1, 2012, and September 30, 2022.

    RESULT: PICOS criteria were formulated for study inclusion. The bibliographical search identified 1485 articles, which were subsequently filtered. Two researchers separately screened the articles for eligibility and to reduce the risk of bias in the included studies. Finally, the most pertinent 21 articles were scrutinized for data synthesis.

    CONCLUSION: Most studies identified combination methods, including customized educational demonstrations, as the best at improving OH status, knowledge, and practices. However, long-term, rigorously designed, and effective patient-centered communication trials, including those on innovative methods, are still needed for individuals with VI.

  18. Ahmad MS, Abuzar MA, Razak IA, Rahman SA, Borromeo GL
    Eur J Dent Educ, 2017 Nov;21(4):e29-e38.
    PMID: 27273317 DOI: 10.1111/eje.12211
    Poor oral health has been associated with compromised general health and quality of life. To promote comprehensive patient management, the role of medical professionals in oral health maintenance is compelling, thus indicating the need for educational preparation in this area of practice. This study aimed to determine the extent of training in oral health in Malaysian and Australian medical schools. An audio-recorded semi-structured phone interview involving Academic Programme Directors in Malaysian (n = 9, response rate=81.8%) and Australian (n = 7, response rate = 35.0%) medical schools was conducted during the 2014/2015 and 2014 academic years, respectively. Qualitative data was analysed via thematic analysis, involving coding and grouping into emerging themes. Quantitative data were measured for frequencies. It was found that medical schools in Malaysia and Australia offered limited teaching of various oral health-related components that were mostly integrated throughout the curriculum, in the absence of structured learning objectives, teaching methodologies and assessment approaches. Barriers to providing oral health education included having insufficient expertise and overloaded curriculum. As medical educators demonstrated support for oral health education, collaboration amongst various stakeholders is integral to developing a well-structured curriculum and practice guidelines on oral health management involving medical professionals.
  19. Zakaria ZA, Mohamad AS, Ahmad MS, Mokhtar AF, Israf DA, Lajis NH, et al.
    Biol Res Nurs, 2011 Oct;13(4):425-32.
    PMID: 21112917 DOI: 10.1177/1099800410386590
    Nonsteroidal anti-inflammatory drugs (NSAIDs) have been widely used for the treatment of inflammation. However, despite their effectiveness, most NSAIDs cause various side effects that negatively affect the management of inflammation and, in part, pain. Thus, there is a need to search for new anti-inflammatory agents with few, or no, side effects. Natural products of plant, animal, or microorganism origin have been good sources of new bioactive compounds. The present study was carried out to evaluate the acute and chronic anti-inflammatory activities of the essential oil of the rhizomes of Zingiber zerumbet (Zingiberaceae) using the carrageenan-induced paw edema and cotton pellet-induced granuloma tests, respectively. The effect of the essential oil on inflammatory- and noninflammatory-mediated pain was also assessed using the formalin test. Essential oil of Z. zerumbet, at doses of 30, 100, and 300 mg/kg, was administered intraperitoneally to rats. The substance exhibited significant anti-inflammatory activity both in acute and chronic animal models. The essential oil also inhibited inflammatory- and noninflammatory-mediated pain when assessed using the formalin test. In conclusion, the essential oil of Z. zerumbet possessed anti-inflammatory activity, in addition to its antinociceptive activity, which may explain its traditional uses to treat inflammatory-related ailments.
  20. Ahmad MS, Suardi N, Shukri A, Nik Ab Razak NNA, Oglat AA, Makhamrah O, et al.
    Eur J Radiol Open, 2020;7:100257.
    PMID: 32944594 DOI: 10.1016/j.ejro.2020.100257
    Introduction: Hepatocellular carcinoma (HCC) is one of the most common cancer in the world, and the effectiveness of its treatment lies in its detection in its early stages. The aim of this study is to mimic HCC dynamically through a liver phantom and apply it in multimodality medical imaging techniques including magnetic resonance imaging (MRI), computed tomography (CT), and ultrasound.

    Methods and materials: The phantom is fabricated with two main parts, liver parenchyma and HCC inserts. The liver parenchyma was fabricated by adding 2.5 wt% of agarose powder combined with 2.6 wt% of wax powder while the basic material for the HCC samples was made from polyurethane solution combined with 5 wt% glycerol. Three HCC samples were inserted into the parenchyma by using three cylinders implanted inside the liver parenchyma. An automatic injector is attached to the input side of the cylinders and a suction device connected to the output side of the cylinders. After the phantom was prepared, the contrast materials were injected into the phantom and imaged using MRI, CT, and ultrasound.

    Results: Both HCC samples and liver parenchyma were clearly distinguished using the three imaging modalities: MRI, CT, and ultrasound. Doppler ultrasound was also applied through the HCC samples and the flow pattern was observed through the samples.

    Conclusion: A multimodal dynamic liver phantom, with HCC tumor models have been fabricated. This phantom helps to improve and develop different methods for detecting HCC in its early stages.

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