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Carotid artery stenosis is usually diagnosed by color flow duplex ultrasound scan of the carotid arteries in the neck. This involves no radiation, no needles and no contrast agents that may cause allergic reactions. This test has good sensitivity and specificity. [16] Typically duplex ultrasound scan is the only investigation required for ...
CT-Scan showing a coronal section of the abdomen of an elderly lady with an IPO. The symptoms of IPO are nonspecific. It is not unusual for patients to present repeatedly and to undergo numerous tests. [4] Mechanical causes of intestinal obstruction must be excluded to reach a diagnosis of pseudo-obstruction.
CT image showing mesenteric ischemia with pneumatosis intestinalis and gas in mesenterial and liver veins. Computed tomography (CT scan) is often used. [29] [30] The accuracy of the CT scan depends on whether a small bowel obstruction (SBO) is present. [31] SBO absent. prevalence of intestinal ischemia 23%; sensitivity 64%; specificity 92%
A CT scan image showing a ruptured abdominal aortic aneurysm. CT Scan of 11 cm Wilms' tumor of right kidney in 13-month-old patient. Computed tomography of the abdomen and pelvis is an application of computed tomography (CT) and is a sensitive method for diagnosis of abdominal diseases. It is used frequently to determine stage of cancer and to ...
Volume rendered CT scan of abdominal and pelvic blood vessels. CT angiography is a contrast CT where images are taken with a certain delay after injection of radiocontrast material. The contrast material is radiodense causing it to light up brightly within the blood vessels of interest. In order for the CT scanner to be able to scan the correct ...
Carotid ultrasound is a low-cost, noninvasive, and accurate diagnostic imaging modality used to evaluate diseases of the carotid arteries. [2] It is most often used to diagnose carotid artery stenosis, a form of atherosclerosis, and has the capability to assess plaque morphology and characteristics. [1]
A CT scan or ultrasound of the abdomen and pelvis are the preferred imaging modalities in the evaluate of an acute abdomen. [8] The use of radiocontrast agents with CT scans improve diagnostic accuracy. [2] Some authors advocate for the use of CT angiography with contrast of the abdomen and pelvis as the preferred imaging modality. [2]
Yet, CT scan is the best alternative for diagnosing intra-abdominal injury. [1] Computed tomography provides an overall better surgical strategy planning, and possibly fewer unnecessary laparotomies. Abdominal x-ray is therefore not recommended for adults with acute abdominal pain presenting in the emergency department. [2]