| 4 | Abdominal hernias:Radiological features显示文摘Abdominal wall hernias are common diseases of the abdomen with a global incidence approximately 4%-5%. They are distinguished in external,diaphragmatic and internal hernias on the basis of their localisation.Groin hernias are the most common with a prevalence of 75%, followed by femoral(15%)and umbilical(8%).There is a higher prevalence in males(M:F,8:1).Diagnosis is usually made on physical examination.However,clinical diagnosis may be difficult,especially in patients with obesity,pain or abdominal wall scarring.In these cases, abdominal imaging may be the first clue to the correct diagnosis and to confirm suspected complications. Different imaging modalities are used:conventional radiographs or barium studies,ultrasonography and Computed Tomography.Imaging modalities can aid in the differential diagnosis of palpable abdominal wall masses and can help to define hernial contents suchas fatty tissue,bowel,other organs or fluid.This work focuses on the main radiological findings of abdominal herniations. | Francesco Lassandro Francesca Iasiello Nunzia Luisa Pizza Tullio Valente Maria Luisa Mangoni di Santo Stefano Roberto Grassi Roberto Muto | 2011 | World Journal of Gastrointestinal Endoscopy2011，3，6： | 1 |
| 5 | Gastric blunt traumatic injuries: A computed tomography grading classification显示文摘AIM To produce a radiological grading of gastric traumatic injuries. METHODS In our study, we retrospectively analyzed 32 cases of blunt gastric traumatic injuries and compared computed tomography(CT) data with patients' surgical or medical development. In all cases, a basal phase was acquired, and an intravenous contrast material was administered via an antecubital venous catheter with acquisition in the venous phase(70-90 s). In addition, a further set of delayed scans was performed 4-5 min after the first scanning session, without supplementary intravenous contrast material, to identify or better define areas of active bleeding. All CT examinations were retrospectively reviewed by two radiologists, with more than 5 years of experience in emergency radiology, to detect signs of gastric injuries and/or associated abdominal lesions according to literature data. Specific CT findings for gastric rupture include luminal content extravasation and discontinuity of the gastric wall, while CT findings suggestive of injury consisted of free peritoneal fluid, extraluminal air, pneumatosis, and thickening and hematoma of gastric wall.RESULTS We found 32 gastric traumatic injuries. In 22 patients(68.8%), the diagnosis was based on the surgical findings; in the other 10 patients(31.2%), the diagnosis was based on the clinical and CT radiological data. We observed discontinuity of the gastric wall and luminal content extravasation in 1 patient(3.1%); in 10 patients(31.2%), there was extra-luminal air in the peritoneum. In 28 patients(87.5%), there was peritoneal fluid, which was blood in 14 patients(hematoma in 11 patients and contrast material extravasation from active bleeding in 3 patients). In 15 patients(46.9%), there was gastric wall thickening. In 3 patients, it was possible to identify a prevalent involvement of the external layer of the gastric wall, whereas, in 2 patients, the inner side of the gastric wall presented with major involvement. In 3 patients(9.4%), pneumatosis of the gastric wall was detected. In 19(59.4%) patients, the stomach was full. The fundus was the most frequently damaged part of the stomach because it was involved in 17 patients(53.1%). Based on the observed data, we identified four grades of gastric lesions.CONCLUSION A radiologic score is helpful for guiding the diagnosis and management(surgical or conservative) of gastric blunt traumatic injuries and stratify patients according to short-term outcomes. | Antonio Solazzo Giulia Lassandro Francesco Lassandro | 2017 | World Journal of Radiology2017，9，2： | 0 |
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