Ischemia at the upper extremity is considered one of the disabling and frequent causes of blind medical care failure. Non- invasive techniques as CTA and Doppler could effectively determine stenosis grades up to occlusion of the upper extremity, particularly if they impact the vessels proximal to the wrist also they can characterise the thrombus characters and recanalisation. The study was a prospective study carried out on 30 patients with upper extremity ischemia during the period from April 2019 to April 2020 at the Radiology department of ZagazigUniversity hospitals. All patients presented with signs of ischemia as claudication, colour changes, pulselessness and their age ranged between 45 to 70 years. All patients underwent complete history taking and clinical examination, the results were correlated to conventional angiography. Overall, in the present study, Doppler US has a sensitivity of 86.6 %, a specificity of 100%, PVP of 100% and PVN of 91.3%. CTA has a sensitivity of 93.3 %, the specificity of 100%, PVP of 100% and PVN of 95.45 %.CTA was more sensitive in milder degrees (Grades I& II) of thromboembolism and stenosis but no significant difference in severe cases (Grades III &IV). Segmental length assessment and collateral circulation were better noted on CT Angiography.
Imaging plays an essential role in the evaluation of patients after cranial surgery. Postoperative infection and hemorrhage are common complications after cranial surgeries. Life-threatening complications (like tension and paradoxical herniation) must be identified rapidly at imaging to secure a favorable prognosis. This cross-sectional study included 250 patients who underwent neurosurgical operations and were imaged for the developed postoperative complications using Computed Tomography(CT), Magnetic Resonance Imaging(MRI) with and without contrast. We reviewed the common normal and abnormal findings in post-operative neurosurgical patients. The expected postoperative CT and MRI appearances of these procedures are discussed, followed by complications. These include hemorrhage, tension , wound/soft tissue infection, bone flap infection and abscesses. Complications specifically related to include herniation, external brain , paradoxical herniation, and syndrome. In our study165 male; 58 % and 85 female; 42 % were included; age range (6months-69 years), mean age 34.7 ± 2.9 years. 130 patients underwent , infection (23%) was the most dominant complication followed by cranial hemorrhage (19 %). So to conclude;radiologist must know how to recognize postoperative complications and differentiate them from expected normal findings because an early and accurate diagnosis is important for proper postoperative care. tomography is fast, cost effective, and easily accessible for first-line imaging. Magnetic resonance imaging has higher sensitivity for detecting postoperative infection and ischemia.
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