Radiological examinations have played a crucial role in the identification and management of COVID-19 patients. Therefore, knowledge and awareness of infection control among healthcare workers in radiology departments are important to prevent disease transmission. This study aimed to assess the knowledge and practice of infection control for COVID-19 among healthcare workers in radiology departments in Saudi Arabia. A cross-sectional, online questionnaire was administered among healthcare workers in radiology departments in Saudi Arabia in May 2020. The questionnaire consisted of demographic characteristics, profession, knowledge of infection control for COVID-19, and good practice of infection control measures for COVID-19 in radiology departments. A descriptive statistical analysis and chi-square test were performed using SPSS software. A total of 234 (91%) of healthcare workers replied that they have good knowledge about the precautions needed during the examination of positive COVID-19 cases in radiology departments, and 216 (84%) replied that they knew the necessary precautions when using portable X-ray machine. Moreover, 191 (>74%) of those surveyed agreed that wearing personal protective equipment and following the CDC sequence. There was significant association between profession and good clinical practices in radiology departments regarding COVID-19. Such knowledge could limit the spread of COVID-19 among the healthcare workers in radiology departments.
A chest x-ray is the most commonly used modality for detecting cardiomegaly, and the cardiothoracic ratio (CTR) has been used as an important tool for estimating the heart size. The main aims of the present study were to determine the distribution of cardiomegaly in normal adults in Saudi Arabia and to evaluate the correlation between the presence of cardiomegaly and age. Data was collected from King Abdulaziz Hospital, Jeddah. A conventional x-ray machine was used for obtaining the x-rays, and CTR was calculated for each patient. Our study included 59 participants (24 females, 40.7%; 35 males, 59.3%) who were examined by posteroanterior (PA) chest x-rays; their age range was 15-79 years. Descriptive analyze were performed using SPSS. The results of our study showed that 38 (64.4%) patients were normal, while 21 (35.6%) patients had cardiomegaly. Of the patients with cardiomegaly, 14 were males (66.7%) and 7 were females (33.3%). The age distribution of these patients was as follows: 15-25 years, 2 patients; 26-36 years, 3 patients; 37-47 years, 5 patients; 48-58 years, 5 patients; 59-69 years, 4 patients; and 59-69 years, 2 patients. The results revealed that cardiomegaly occurs more commonly in males than in females and is particularly observed in the middle-aged group.
Ischemic heart disease (IHD), also known as coronary artery disease (CAD), is a leading cause of morbidity and mortality in adults. The aims of this research were to study the recent advances on the prognostic and diagnostic value, drawbacks, and the future directions of cardiac magnetic resonance imaging (CMRI) in the diagnosis of IHD. One hundred patients with IHD who had been clinically diagnosed were enrolled in this study prospectively. CMRI; Siemens Magnetom Sola 1.5 T MRI scanner was used to examine the patients. To confirm the diagnosis, conventional coronary angiography was used. CMRI revealed that the left ventricular (LV) volumes and systolic function of male and female patients differed by age decile were 28.9 ± 3.5%; 32 ± 1.7%, 53.3 ± 11.2; 58 ± 6.6 ml, 100.6 ± 7.1; 98.3 ± 14.7 bpm, 5.4 ± 1.4; 5.8 ± 1.5 L/min, 189 ± 14.3; 180 ± 10.9 ml, and 136 ± 3.1; 123 ± 4.4 ml for the left ventricle ejection fraction (LVEF), stroke volume (SV), heart rate, cardiac output, end diastolic volume (EDV), and end systolic volume (ESV), respectively. CMRI has sensitivity, specificity, and accuracy of 97%, 33.33%, and 95.15%, respectively. Finally, CMRI provides a comprehensive assessment of LV function, myocardial perfusion, and viability, as well as coronary anatomy.
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