Medical Imaging Technology
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- ItemEvaluation of Radiation Dose for Pediatric Patients On Brain CT Scans as A Function of Protocol Used and Type of CT Device in The Palestinian Governmental Hospitals(Al-Quds University, 2024-01-06) Asala Mohamed Mahmoud Khalil; أصالة محمد محمود خليلMedical imaging, specifically computed tomography scans, plays a vital role in diagnosing and treating various medical conditions, such as brain tumors, lesions, and strokes. This is particularly beneficial in pediatric cases where it can aid in diagnosis and potentially save lives. However, its use also raises concerns about unnecessary radiation exposure. The purpose of this study is to evaluate the existence of local Diagnostic reference levels in Palestine, and to contribute to national efforts in building national DRLs. A multi-center retrospective cross-sectional analytical design was carefully chosen for achieving the study’s objectives. A suitable protocol data and dose reports contain information from Picture Archiving and Communication System (PACS) and Hospital Information System (HIS) were used to collect data in different hospitals of Palestine. A Microsoft Excel spreadsheet was used to analyze the collected data. Regarding the effect of types of protocols on the amount of patient dose, the results showed that all protocols were affected with the amount of patient dose but insignificant at the Dose Length Product. While regarding the effect of Equipment on the amount of patient dose, the results showed that all equipment models were insignificant with the amount of patient Computed Tomography Dose Index, Dose Length Product, (mAs and KVP). The findings showed that CT Dose Index vol and Dose Length Product values in the governmental hospitals were much higher than European Dose Length Product values, which proves that the governmental hospitals do not use a standardized pediatric brain CT protocol
- ItemEvaluation of optimal contrast-enhanced CT scan for Pulmonary Angiography in Palestinian Health System(Al-Quds University, 2024-04-03) Ahmad Fathi Ali Alyan; احمد فتحي علي عليانComputed tomography (CT) technology became one of the gold standard diagnostic modalities all around the world. During the last decade, many advances reveal to new angiographic procedures in CT in shorter exam time and higher image quality. Adequate timing in CT angiography of the Pulmonary Arteries considered vital to the accuracy of the diagnosis of pulmonary embolism. Purpose: The overall aim of this research is to assess the optimal contrast -enhanced CT scan for Pulmonary Angiography in Palestinian Health System The main objectives of this research are: Determine the optimal contrast media enhancement of the pulmonary trunk and descending aorta according to the hospital examined, the gender, and the age of the patient. To determine the accuracy of scanning the pulmonary trunk and descending aorta according to the hospital examined, the gender, and the age of the patient. Methodology A retrospective cross-sectional study was performed to evaluate the optimal contrast enhanced Computed tomography of pulmonary angiography of 285 patients who underwent the exam to role out pulmonary emboli. Data was collected using the picture archiving and communication system from all eight governmental hospitals in the West Bank. SPSS Statistical Package for Social Sciences was used to analyse the collected data according to gender, age group, optimal enhancing, and image accuracy in addition to hypothesis testing. Results Data analysis reveals that optimal enhancement percentage was consistently observed at 75%, encompassing 214 patients. In contrast, 7% of cases, representing 21 patients, were rendered unsuitable for evaluation due to suboptimal enhancement. Notably, a significant proportion, 62% of patients, demonstrated high diagnostic accuracy, with 11% yielding lower accuracy. The pronounced variation in the performance of these hospitals, with Jenin Hospital emerging as the standout contender in both timing enhancement and diagnostic accuracy. A remarkable 19.3% of cases within Jenin Hospital achieved optimal enhancement, showcasing an extraordinary 17.5% high accuracy rate, significantly outperforming other departments. This achievement at Jenin Hospital could be attributed to a fine-tuned protocol of optimal enhancement and high accuracy through the meticulous use of time bolus tracking. In our study of contrast media volume. Through our investigation, we revealed that the use of contrast media at Jericho Hospital had the highest recorded contrast volume of 110 cc. Alia Hospital reported the smallest contrast media volume, weighing in at a mere 50 cc. This contrast in the volume of contrast media used highlights the significant variability in approaches to pulmonary artery CT angiography across these medical institutions. Analyzing the flow rate of contrast media (cc/sec), tThe data clearly depicted that Salfit and Ramallah Hospitals, with their adoption of a flow rate of 5 cc/sec, reigned supreme in this domain. This was a stark contrast to Jenin Hospital, where the flow rate dipped to 3 cc/sec, emerging as the lowest among all the hospitals under examination. Conclusion The current study's research emphasizes the critical role played by contrast media enhancement ratios, CM volume, injection rate, and timing protocols in the accuracy and effectiveness of pulmonary artery CTPA in Palestinian government hospitals. The wide variation in results between these hospitals suggests that there is room for further standardization and improvement in the use of alternative medicine. Our findings not only advance knowledge in this field, but also provide valuable insights for clinicians and medical practitioners, ultimately benefiting patient care and treatment outcomes.
- Itemكشف وقياس الحديد في الكبد وعضلة القلب باستخذام التصوير بالرنين المغناطيسي(AL-Quds University, 2019-07-20) بسام عبد العزبز موسى ابو عرقوب; Bassam Abdelazeez Musa Abuarqoub; محمد حجوج; حسين المصري; ابراهيم حرباوي