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Folia Morphol (Warsz). 2019 May 20. doi: 10.5603/FM.a2019.0060. [Epub ahead of print]

The analysis of renal artery cross-section area and kidney volume in CT-angiography.

Author information

1
Department of General Radiology, Interventional Radiology and Neuroradiology, Borowska 213, 50-556 Wrocław, Poland. agata.szczurowska@gmail.com.
2
Department of General Radiology, Interventional Radiology and Neuroradiology, Borowska 213, 50-556 Wrocław, Poland.
3
Department of Mathematics, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland.
4
Department of General and Pediatric Radiology, Wrocław Medical University, ul. M. Curie-Sklodowskiej 68, 50-369 Wrocław, Poland.

Abstract

BACKGROUND:

The purpose of this study was to assess the relationship between renal artery cross-section area and kidney volume with consideration of anatomical variants of renal arteries, sexual dimorphism and lateralisation.

MATERIAL AND METHODS:

Two hundred and two patients, 104 women and 98 men, aged 57.3±16 years were examined using CT-angiography of abdominal aorta for various reasons. The cross-section areas of renal arteries were measured automatically with a vessel tracking program and summed up on each side in case of the presence of additional renal arteries. The kidneys were measured manually.

RESULTS:

Additional renal arteries (ARA) were found in 68 patients (33.7%). Fifty three (77.9%) of them had one, 11 (16.2%) two and 4 (5.9%) three ARAs. Bilateral ARAs occurred in 10 cases (14.7% patients with ARA). Proximal branching of renal artery occurred in 36 (8.4%) renal arteries. The cross-section area of the largest renal artery depended on the number of ipsilateral renal arteries. Mean cross-section area of the main left renal artery was larger than on the right side (28.52 mm² vs. 25.36 mm², p<0.01) in the whole analysed group. Strong sexual dimorphism in renal artery cross-section area was observed (p<0.01) in favour of men (31.3mm² in men and 22.9mm² in women). Mean total renal artery cross-section area has positively correlated with kidney volume (p <10⁻¹³) in both sexes with Pearson correlation value of 0.5.

CONCLUSIONS:

The cross-section area of renal arteries correlated positively with kidney volume in both sexes. Presence of ARAs do not influence the sum of cross-section areas of renal arteries. In case of a difference between left and right renal artery cross-section area with symmetrical kidneys, it is necessary to look for ARA.

KEYWORDS:

accessory renal arteries; renal dimensions; renal vasculature

PMID:
31106842
DOI:
10.5603/FM.a2019.0060
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