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- W2156822834 abstract "Results of preoperative investigation of 127 patients who underwent elective aortic aneurysm repair during a 3-year period were examined and compared with findings at operation. The accuracy of preoperative computed tomography (CT) and intravenous digital subtraction angiography (DSA) in assessing proximal and distal aneurysm extent was compared. From a total of 118 CT scans, ten of 12 suprarenal aneurysms were correctly predicted, with 11 false positives (positive predictive value 48 per cent, sensitivity 83 per cent, specificity 90 per cent). After 103 DSA investigations, six of ten suprarenal aneurysms were correctly predicted with one false positive (positive predictive value 86 per cent, sensitivity 60 per cent, specificity 99 per cent). Using CT, 30 of 54 aneurysmal iliac arteries were correctly diagnosed with 20 false positives (positive predictive value 60 per cent, sensitivity 56 per cent, specificity 88 per cent). Thirty-six of 48 aneurysmal iliac arteries were diagnosed correctly using DSA, with 32 false positives (positive predictive value 53 per cent, sensitivity 75 per cent, specificity 79 per cent). Intravenous DSA also provided useful information about renal and peripheral occlusive disease. Both investigations have their own specific limitations; clinicians should be aware of these when ordering and interpreting them." @default.
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- W2156822834 date "1994-10-01" @default.
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- W2156822834 title "Intravenous digital subtraction angiography versus computed tomography in the assessment of abdominal aortic aneurysm" @default.
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- W2156822834 doi "https://doi.org/10.1002/bjs.1800811057" @default.
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