TY - JOUR
T1 - Perihilar branching patterns of renal artery and extrarenal length of arterial branches and tumour-feeding arteries on multidetector CT angiography
AU - Kang, W. Y.
AU - Sung, D. J.
AU - Park, B. J.
AU - Kim, M. J.
AU - Han, N. Y.
AU - Cho, S. B.
AU - Kang, C. H.
AU - Kang, S. H.
PY - 2013/3/1
Y1 - 2013/3/1
N2 - Objective: The purpose of our study was to assess the extrarenal length of renal arterial branches and tumour-feeding arteries on multidetector CT (MDCT) angiography, in addition to the perihilar branching patterns, with relevance to segmental artery clamping. Methods: MDCT angiograms of 64 patients with renal masses ,4 cm were retrospectively reviewed by 2 radiologists. The perihilar branching patterns of the single main renal artery were assessed according to the number of pre-segmental and segmental arteries. The extrarenal lengths of segmental plus pre-segmental arteries and the tumourfeeding arteries, measured on volumerendered images, were compared according to the vascular segmentation and the tumour location, respectively. Results: In the 116 kidneys, 1 pre-segmental plus 5 segmental arteries (n548) was the most common branching pattern. The mean extrarenal length of the inferior segmental plus pre-segmental arteries (33.05mm) and the posterior segmental plus pre-segmental arteries (32.30mm) was longer than any of the other segmental plus pre-segmental arteries (apical, 23.87mm, superior, 26.80mm, middle, 29.23mm) (p,0.05). The mean extrarenal length of the lower pole tumour-feeding arteries (35.94mm) was longer than those of the upper and mid-pole tumour-feeding arteries (24.95mm, 29.62mm), with significant difference between the lower and the upper pole tumour-feeding arteries (p,0.05). Conclusion: Tumours in the lower pole, supplied by the inferior or posterior segmentalartery, may be more amenable to segmental artery clamping. Advances in knowledge: MDCT angiography with volume rendering can demonstrate the extrarenal length of tumour-feeding arteries and may help in determining the accessibility for segmental artery clamping.
AB - Objective: The purpose of our study was to assess the extrarenal length of renal arterial branches and tumour-feeding arteries on multidetector CT (MDCT) angiography, in addition to the perihilar branching patterns, with relevance to segmental artery clamping. Methods: MDCT angiograms of 64 patients with renal masses ,4 cm were retrospectively reviewed by 2 radiologists. The perihilar branching patterns of the single main renal artery were assessed according to the number of pre-segmental and segmental arteries. The extrarenal lengths of segmental plus pre-segmental arteries and the tumourfeeding arteries, measured on volumerendered images, were compared according to the vascular segmentation and the tumour location, respectively. Results: In the 116 kidneys, 1 pre-segmental plus 5 segmental arteries (n548) was the most common branching pattern. The mean extrarenal length of the inferior segmental plus pre-segmental arteries (33.05mm) and the posterior segmental plus pre-segmental arteries (32.30mm) was longer than any of the other segmental plus pre-segmental arteries (apical, 23.87mm, superior, 26.80mm, middle, 29.23mm) (p,0.05). The mean extrarenal length of the lower pole tumour-feeding arteries (35.94mm) was longer than those of the upper and mid-pole tumour-feeding arteries (24.95mm, 29.62mm), with significant difference between the lower and the upper pole tumour-feeding arteries (p,0.05). Conclusion: Tumours in the lower pole, supplied by the inferior or posterior segmentalartery, may be more amenable to segmental artery clamping. Advances in knowledge: MDCT angiography with volume rendering can demonstrate the extrarenal length of tumour-feeding arteries and may help in determining the accessibility for segmental artery clamping.
UR - http://www.scopus.com/inward/record.url?scp=84875472856&partnerID=8YFLogxK
U2 - 10.1259/bjr.20120387
DO - 10.1259/bjr.20120387
M3 - Article
C2 - 23418206
AN - SCOPUS:84875472856
SN - 0007-1285
VL - 86
JO - The British journal of radiology.
JF - The British journal of radiology.
IS - 1023
M1 - 20120387
ER -