This study aimed to estimate renal effective dose during abdominal CT scans in order to assess the renal risks of cancer and heredity per procedure in Moroccan hospitals. It’s consisted of examining a total of 120 pa...This study aimed to estimate renal effective dose during abdominal CT scans in order to assess the renal risks of cancer and heredity per procedure in Moroccan hospitals. It’s consisted of examining a total of 120 patients referred to three radiology departments for an abdominal CT scan at the rate of 40 per hospital. The data that collected for this diagnostic exam included scanner acquisition parameters, number of series, use of the contrast medium, and rotation time as well as slice thickness, the displayed CT dose index (CTDI<sub>vol)</sub> and the Dose Length Product (DLP). Renal dose, effective dose and biological risks were estimated using the International Commission on Radiological Protection (ICRP) conversion factor. The patients included in this study were an average age of the (46.49 ± 14.16) years and an average weight of (73.34 ± 7.58) kg. For the mean effective dose (<em>E</em>) and average kidney dose (<em>D<sub>K</sub></em>) received per patient during an abdominal CT scan, it were respectively of (6.67 ± 2.73) and (18.26 ± 7.74) mSv. The distribution of these values according to the hospital variable shows a difference in mean effective dose of the order of 0.26, 0.38 and 1.45 mSv and a difference in the mean renal dose of the order of 8.76, 4.94 and 0.48 mSv respectively for H1, H2 and H3. The induction cancer risk of abdominal and kidney per 10<sub>5</sub> procedures was respectively of 3 and 10. The kidney cancer risk by procedure is two to three times more likely than abdominal. For hereditary risk of abdominal and renal exposure per 10<sub>6</sub> procedures, it is 14 and 21 respectively. The renal stochastic effect by procedure is also two to three times more likely than that of the abdomen. Our values are relatively higher than those of published in some previous studies. Cancer risk and heredity estimation highlights the need to limit radiation dose. This first ever survey confirmed the need to improved training of health professionals involved in computed tomography on factors affecting image quality, doses and protocols optimization.展开更多
Situs inversus is an abnormal placement of the thoracic and/or abdominal organs that are inverted right/left from normal. It is a rare congenital malformation often discovered in childhood. In adults, it can lead to m...Situs inversus is an abnormal placement of the thoracic and/or abdominal organs that are inverted right/left from normal. It is a rare congenital malformation often discovered in childhood. In adults, it can lead to misdiagnosis. Clinical case: A 35-year-old female patient, seen in a hepatogastroenterology consultation for acute spontaneous pain in the right hypochondrium. She had no particular clinical history. A diagnosis of hepatopathy was suspected. Abdominal and pelvic CT scans showed the left liver, stomach and spleen in the right hypochondrium, but with the heart in place, suggesting incomplete situs inversus. The evolution in our patient was spontaneously resolved with analgesics and antispasmodics, which leads us to believe that the volvulus was probably partial and without other complications. Conclusion: In developing countries, antenatal diagnosis of situs inversus is rare and is usually made during a pathology that leads the patient to a medical consultation. CT is one of the key paraclinical examinations for its diagnosis as genetic tests are not widely available.展开更多
Aorto-enteric fistula(AEF)is a rare entity that accounts for high mortality. Early diagnosis is paramount to improving the survivals of patients with AEF but the diagnosis tends to be delayed in practice due to extrem...Aorto-enteric fistula(AEF)is a rare entity that accounts for high mortality. Early diagnosis is paramount to improving the survivals of patients with AEF but the diagnosis tends to be delayed in practice due to extremely variable clinical presentations. Contrasted computer tomography(CT),oesophagastroduodenoscopy(OGDS)or angiography should be prompted in a timely manner based on a high index of clinical suspicion. In this article,a case of primary AEF(PAEF)with herald gastroenteric tract haemorrhage is presented. In addition to the pathophysiology and managements,the pitfalls of the diagnostic studies are discussed,pinpointing the importance of high index of clinical suspicion.展开更多
文摘This study aimed to estimate renal effective dose during abdominal CT scans in order to assess the renal risks of cancer and heredity per procedure in Moroccan hospitals. It’s consisted of examining a total of 120 patients referred to three radiology departments for an abdominal CT scan at the rate of 40 per hospital. The data that collected for this diagnostic exam included scanner acquisition parameters, number of series, use of the contrast medium, and rotation time as well as slice thickness, the displayed CT dose index (CTDI<sub>vol)</sub> and the Dose Length Product (DLP). Renal dose, effective dose and biological risks were estimated using the International Commission on Radiological Protection (ICRP) conversion factor. The patients included in this study were an average age of the (46.49 ± 14.16) years and an average weight of (73.34 ± 7.58) kg. For the mean effective dose (<em>E</em>) and average kidney dose (<em>D<sub>K</sub></em>) received per patient during an abdominal CT scan, it were respectively of (6.67 ± 2.73) and (18.26 ± 7.74) mSv. The distribution of these values according to the hospital variable shows a difference in mean effective dose of the order of 0.26, 0.38 and 1.45 mSv and a difference in the mean renal dose of the order of 8.76, 4.94 and 0.48 mSv respectively for H1, H2 and H3. The induction cancer risk of abdominal and kidney per 10<sub>5</sub> procedures was respectively of 3 and 10. The kidney cancer risk by procedure is two to three times more likely than abdominal. For hereditary risk of abdominal and renal exposure per 10<sub>6</sub> procedures, it is 14 and 21 respectively. The renal stochastic effect by procedure is also two to three times more likely than that of the abdomen. Our values are relatively higher than those of published in some previous studies. Cancer risk and heredity estimation highlights the need to limit radiation dose. This first ever survey confirmed the need to improved training of health professionals involved in computed tomography on factors affecting image quality, doses and protocols optimization.
文摘Situs inversus is an abnormal placement of the thoracic and/or abdominal organs that are inverted right/left from normal. It is a rare congenital malformation often discovered in childhood. In adults, it can lead to misdiagnosis. Clinical case: A 35-year-old female patient, seen in a hepatogastroenterology consultation for acute spontaneous pain in the right hypochondrium. She had no particular clinical history. A diagnosis of hepatopathy was suspected. Abdominal and pelvic CT scans showed the left liver, stomach and spleen in the right hypochondrium, but with the heart in place, suggesting incomplete situs inversus. The evolution in our patient was spontaneously resolved with analgesics and antispasmodics, which leads us to believe that the volvulus was probably partial and without other complications. Conclusion: In developing countries, antenatal diagnosis of situs inversus is rare and is usually made during a pathology that leads the patient to a medical consultation. CT is one of the key paraclinical examinations for its diagnosis as genetic tests are not widely available.
文摘Aorto-enteric fistula(AEF)is a rare entity that accounts for high mortality. Early diagnosis is paramount to improving the survivals of patients with AEF but the diagnosis tends to be delayed in practice due to extremely variable clinical presentations. Contrasted computer tomography(CT),oesophagastroduodenoscopy(OGDS)or angiography should be prompted in a timely manner based on a high index of clinical suspicion. In this article,a case of primary AEF(PAEF)with herald gastroenteric tract haemorrhage is presented. In addition to the pathophysiology and managements,the pitfalls of the diagnostic studies are discussed,pinpointing the importance of high index of clinical suspicion.
