Purpose: Magnetic resonance imaging (MRI) is an important diagnostic method in modern clinical medicine. Patients’ ‎‎knowledge about MRI is of utmost importance for optimizing the workflow, ‎safety, and patient comfort and saving valuable time for the MRI department. This study investigates patient knowledge levels regarding MRI safety before an MRI examination. Patients and Methods: A cross-sectional survey was completed by 200 patients who required MRI. Recruitment occurred over eight weeks in ‎governmental and private hospitals in Saudi ‎Arabia; both hospitals and participants were selected randomly. The ‎questionnaire was given to the patients prior to ‎their MRI scans. Descriptive statistics and chi-square tests were performed to identify relationships between knowledge of MRI safety and selected demographic groupings (age, gender, education level, income level). It also evaluates their source of information and assesses the patient’s previous experience regarding MRI scans.‎ Results: The study sample consisted of 200 patients from 230 surveys distributed in ‎Saudi Arabia, and the response rate was ∼ 87%. Depending on the P-values of the chi-square statistical test to find the relationship between ‎socio-demographic factors and patient’ knowledge level, the results showed a significant association (p-value=0.006) between age and gender and the level of knowledge relating to MRI safety issues. A similar significance (p-value=0.042) is observed between the knowledge level of patients and their educational level and annual income. In addition, a highly significant association (p-value< 0.001) is found between education level or previous experience and whether people seek information about MRI safety. Conclusion: The study findings suggest that a complex combination of factors affects patient knowledge regarding MRI safety before an MRI examination. Hence, the hospital and radiological department must ‎‎provide the ‎patient with accurate information about MRI.‎

Objectives: To determine the prevalence and demographic data regarding incidentally encountered elastofibroma dorsi (EFD) in the Saudi population-based on chest CT (computed tomography) scans. Methods: This retrospective study was carried out on 4,435 chest CT examinations that were collected between January 2014 and December 2016 in Riyadh, Saudi Arabia. One musculoskeletal radiologist who was unaware of the patients’ clinical presentations or reasons for CT study reviewed the 4,435 chest CTs prospectively, searching for soft tissue tumors in the subscapular region. Results: Elastofibroma dorsi was incidentally confirmed via CT scan in 36 of the 4,435 patients, including 8 males and 28 females, with a mean age of 76.6 years, yielding a prevalence of 0.8%. Elastofibroma dorsi was more common in females, with a 3.3-fold higher prevalence (77.8%) as compared to males (22.2%); however, this difference was not statistically significant (p>0.05). Twenty-five (69.44%) patients had unilateral EFD and 11 (30.56%) had bilateral EFD. Right-sided EFD was encountered in 60% of females and 50% of males. Furthermore, there was no statistically significant correlation between the size of EFD and the patient’s gender or age (p>0.05). Conclusion: Elastofibroma dorsi is a rare but uncommon incidental finding on routine chest CT examination encountered in 0.8% of elderly Saudi patients.

Objectives: The aim of this study is to assess the association between the anastomosis diameter enlargement and steal syndrome incidence in patients with upper limb arteriovenous fistula using ratios as reliable predictors. Material and Methods: An analytical cross-sectional prospective study was conducted. A total of 49 patients with AVF hemodialysis access were recruited. Twenty-four participants with positive steal syndrome and 25 control were enrolled in the study. Anastomosis diameter, anastomosis diameter ratio, and volume flow ratio were measured ultrasonographically by two expert vascular sonographers. These clinical parameters were recorded and analyzed to assess the difference and association. Patient risk factors and steal syndrome association were emphasized. Results: The study analysis indicates a strong association in the anastomosis diameter and anastomosis diameter ratio between steal and non-steal patients with a p-value ≤0.05. Additionally, there was a significant increase in the volume flow ratio in the patients with steal syndrome compared to the control group ( p-value ≤0.05). There was a strong relationship between steal syndrome and the presence of peripheral arterial disease (73.9%, p = 0.001). The ICC index of absolute agreement between the two observers was ICC= 0.99 (95% CI 0.99–0.99, n = 10), indicating excellent agreement between observers. Conclusion: Anastomosis diameter and volume flow ratio strongly suggest that steal syndrome is associated with the increased diameter of anastomosis. Patients with a≥1.05 anastomosis diameter ratio have a greater risk of developing steal syndrome than those with an anastomosis ratio of ≤0.8. In addition, patients with a volume flow ratio ≥0.98 have an increased risk of developing steal syndrome than those with a volume flow ratio of ≤0.75.

Myocardial infarction is one of the major causes of death and disability. Various diagnostic modalities used to investigate cardiac ischaemia. Advances in Magnetic Resonance Imaging technology has opened up new horizons for investigating the cardiac function and quantifying any pathology that may be present. The present study was designed to quantify the cardiac area at risk and infarction reperfusion areas using the mismatch of iron oxide contrast and gadolinium (Gd) contrast imaging (MRIs) and to test if a combination of T1, T2, and iron oxide T2* contrasts will distinguish the infarction and AAR zones. A well-established mouse model was used to induced cardiac ischaemia and reperfusion. Six mice models’ hearts were harvested and processed according to various protocols. MI was induced through ligation technique for five mice, and one was kept as normal control. MR imaging and Reperfusion were performed using a Three-dimensional gradient-echo fast low angle shot (3DFLASH) and three-dimensional multi-slice multi-echo sequence (3DMSME). Generation of T1 and T2 maps, image post-processing including segmentation and mismatch measurement and drawing of the area of interest. The edematous myocardium had significant high signal intensity in 3DMSME with variable echo time (14, 28, 42 ms). The combination of 3DFLASH and 3DMSME at an echo time of 42 ms was statistically significant, detecting the AAR more accurately. Both T1 and T2 sequences had the potential to determine the AAR zone. The infarct area has significantly high signal intensity compared to normal areas (p = 0.04 for the T1 map and p = 0.01 for the T2 map). The study demonstrated that Cardiac MRI was a valuable technology to investigate infarct areas and zones that are at risk.

Aim: Ultrasound (US) is increasingly used for fracture diagnosis, yet the comparative performance of handheld and conventional US, particularly by novice users, remains unclear. This study evaluated their diagnostic accuracy using in vitro bone models.Material and methods: Five blinded junior sonographers examined seven bone samples (comprising four fractured, comminuted, transverse, obliquely displaced, and linear, as well as three intact samples) using both types of devices. Diagnostic sensitivity, specificity, and accuracy were calculated. McNemar’s test evaluated differences in performance, Cohen’s Kappa measured inter-device agreement, and McNemar’s test along with mixed-effects logistic regression analysed the impact of fracture types. Inter-sonographer reliability was assessed using the intraclass correlation coefficient (ICC).Results: Both devices showed 85% sensitivity (95% CI: 61.1–96%). Specificity was low (conventional: 20.0%; handheld: 33.3%). Accuracy was moderate (conventional: 57.1%; handheld: 62.9%). No significant difference was found (p = .21), and inter-device agreement was poor (Kappa = 0.05±0.20). Comminuted fractures were significantly more detectable than intact bones (OR=2.25, p=0.03). Inter-operator reliability was low (ICC: 0.28–0.35).Conclusion: Handheld US showed slightly higher specificity and accuracy, but both systems demonstrated limited agreement and variable novice performance. These findings highlight the need for improved training and optimisation when using US for fracture detection.

Background: PPPs are central to Saudi Arabia’s Vision 2030 healthcare transformation, yet evidence on their impact on accessibility, quality, and sustainability remains limited. The purpose of this study was to evaluate the perceived associations between PPP implementation under Vision 2030 and three healthcare system outcomes—service accessibility (geographical, financial, technological), care quality (clinical outcomes, patient satisfaction, efficiency), and reform sustainability (economic, operational, adaptive)—from the perspectives of healthcare professionals and patients in Saudi Arabia. Methods: A cross-sectional, mixed-methods design was employed. Surveys were administered to 150 healthcare professionals and 210 patients at PPP-operated facilities (response rates of 61.2% and 65.6%, respectively). Descriptive and inferential statistics—including t-tests, ANOVA, chi-square tests, and multiple regression analysis adjusted for age, sex, education, household income, comorbidities, and facility type were used to assess associations between PPP initiatives and outcomes. Instrument reliability was confirmed (Cronbach’s α ≥ 0.7), and content validity was supported by an expert-panel content validity index of 0.91. Thematic analysis of open-ended responses captured stakeholder perceptions and challenges (inter-coder κ = 0.83). Results: Among professionals, 56.6% reported improved accessibility following the implementation of PPP, with 60.6% endorsing telemedicine as a key facilitator. However, 64.6% indicated financial access remained unchanged or worsened due to persistent out-of-pocket expenditures, and a statistically significant urban–rural gap was observed (p = 0.008). Quality indicators showed positive trends, including improved patient outcomes (52%), reduced waiting times (60.6%), and high satisfaction with hygiene and safety (74%). Sustainability assessments were cautiously favorable (mean financial viability = 3.4/5), though subsidy dependence remained a concern. Adjusted regression analysis identified financial accessibility (β = 0.31, p < 0.001) and reduced waiting times (β = 0.23, p = 0.005) as variables significantly associated with patient-reported outcomes. Conclusions: PPPs were associated with measurable improvements in healthcare accessibility, quality, and efficiency in Saudi Arabia. However, achieving the Vision 2030 objectives requires reforms that address financial equity, service distribution, workforce nationalization, and governance.