The use of scintiangiography with technetium 99m in the diagnosis of traumatic pseudoaneurysm

Published on Mar 1, 1988in Journal of Vascular Surgery3.405
· DOI :10.1016/0741-5214(88)90436-3
Michael E. Hayek2
Estimated H-index: 2
(WashU: Washington University in St. Louis),
Mark A. Ludwig1
Estimated H-index: 1
(WashU: Washington University in St. Louis)
+ 1 AuthorsCheryl Sisler1
Estimated H-index: 1
(WashU: Washington University in St. Louis)
Abstract Pseudoaneurysm formation is a known complication of peripheral arterial access procedures. Although standard contrast angiography has been considered the diagnostic study of choice to identify pseudoaneurysms, isotope angiography has been described as an alternative method. In this study, we examined the role of99mTc-tagged red blood cell scans in the diagnosis of traumatic pseudoaneurysm. Forty patients underwent scans; 25 scans were reported as abnormal and 15 as normal. There were no false-negative results; one scan had false-positive results (2.5%). The presence of pseudoaneurysm among the patients with abnormal scans was verified at operation in 23 of 25 patients. The one false-positive test was verified by ultrasound. All patients with normal scans were followed up for verification. Follow-up time ranged from 2 to 28 months. Radionuclide vascular flow study appears to give information similar to that of conventional angiography. With a series false-positive rate of 2.5%, the examination has a high specificity. The 99mTc-tagged red blood cell scan is a viable alternative to conventional angiography for the diagnosis of traumatic pseudoaneurysms and is associated with less radiation and morbidity. (J V ASC S URG 1988;7:409-13.)
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