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Tumor feeding artery reconstruction with multislice spiral CT in the diagnosis of
pelvic tumors of unknown origin
#MMPMID24100058
Hu HJ
; Huang YW
; Zhu YC
Diagn Interv Radiol
2014[Jan]; 20
(1
): 9-16
PMID24100058
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PURPOSE: We aimed to compare multislice spiral computed tomography (MSCT)
angiography diagnosis with both surgical findings and postoperative pathological
results in patients with pelvic tumors of unknown origin. In addition, the
diagnostic accuracy of MSCT angiography was compared with that of routine
computed tomography for tumor feeding artery volume reconstruction to determine
the origin and nature of pelvic tumors. MATERIALS AND METHODS: The records of 43
patients with pelvic tumors of unknown origin who underwent MSCT angiography were
retrospectively reviewed. Volume reconstructions using add vessel and merge views
methods were performed for abdominal and pelvic blood vessels. The tumor origin
was identified based on observations of the origin, number, morphology,
starting/ending locations, route, and distribution of the tumor feeding arteries.
RESULTS: Overall, the mean tumor diameter was 9.8±3.5 cm (range, 4.2-23.5 cm); 11
tumors (25.6%) were cystic in nature; and 32 tumors (74.4%) were either
solid/cystic or solid in nature. When considering all MSCT angiography
examinations used to predict the nature of the tumor (e.g., malignant or benign),
the sensitivity and specificity were 77.3% and 95.2%, respectively. The positive
and negative predictive values were 94.4% and 80%, respectively. The overall
diagnostic accuracy was 86.05% with an area under the curve of 0.961 (95%
confidence interval, 0.913-1.000). CONCLUSIONS: MSCT angiography volume
reconstruction for pelvic tumor feeding arteries of unknown origin is highly
valuable for localization, qualitative diagnosis, and quantitative diagnosis of
pelvic tumors.
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