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Three‐dimensional Power Doppler Imaging in Depicting Vascularity in Hepatocellular Carcinoma
Author(s) -
Xu Hui-Xiong,
Liu Li,
Lu Ming-De,
Li He-Ping,
Liu Guang-Jian,
Li Jia-Ping
Publication year - 2003
Publication title -
journal of ultrasound in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 91
eISSN - 1550-9613
pISSN - 0278-4297
DOI - 10.7863/jum.2003.22.11.1147
Subject(s) - vascularity , medicine , power doppler , angiography , radiology , hepatocellular carcinoma , doppler effect , maximum intensity projection , nuclear medicine , ultrasonography , physics , astronomy
Objective . To assess the ability of three‐dimensional power Doppler imaging to depict vascularity in hepatocellular carcinoma. Methods . Forty‐three patients with hepatocellular carcinomas were subjected to two‐ and three‐dimensional power Doppler imaging, and 14 of them also underwent angiography. The delineated amounts of intratumoral Doppler signals were compared between 2 methods of power Doppler imaging in 43 patients. In the 14 patients who also underwent angiography, the patterns of blood supply depicted by 2 methods of power Doppler imaging were compared with that depicted by angiography, and the intratumoral vascularity on three‐dimensional projection images and angiograms was also quantitatively assessed by calculating the vascularity‐area ratio with graphics software. Results . In comparison with two‐dimensional power Doppler imaging, three‐dimensional power Doppler imaging was subjectively determined as showing more intratumoral Doppler signals in 32 (74.4%) of the 43 lesions. The accuracies in depicting vascular patterns were 64.3% (9 of 14) for three‐dimensional projection images and 14.3% (2 of 14) for two‐dimensional slices compared with the results of angiography. The vascularity‐area ratios on three‐dimensional power Doppler imaging projections and angiograms were 46.0% ± 25.6% and 48.5% ± 22.5% (mean ± SD), respectively ( P > .05). Three‐dimensional projection images correlated significantly with angiograms in quantifying the vascularity (γ = 0.87; P < .001). Conclusions . A three‐dimensional power Doppler projection image gives a better overall picture of vascular distribution than a two‐dimensional slice and correlates with angiography significantly for delineating vascularity in hepatocellular carcinoma.