CT angiography of renal arteries: anatomy, variants and its importance in the living donor.

Praveen, K.; Pentyala, Suneetha; Hema, Lattupalli

doi:10.9790/0853-1508047378

Cited by 2 publications

(2 citation statements)

References 15 publications

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“…This was in agreement with the findings of Palmieri et al, [20] in Brazilian population. In contrast, Aytac et al, [13] , Tyagi et al, [24] and Venkataramulu et al, [21] found that the diameter of the main RA with additional artery was significantly less than those without additional arteries in Indian population. Venkataramulu et al, [21] reported that when the diameter of the renal artery is found less than 4.5mm, the presence of additional artery is suspected.…”

Section: Discussionmentioning

confidence: 92%

Variations in Renal Artery in Egyptian Population: Cadaveric and Angiographic Study

Awad¹,

Farid

2019

The Medical Journal of Cairo University

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Background: Variations of Renal Artery (RA) are important in uroradiological procedures. Pre-operative visualization of the renal vascular anatomy is crucial for selecting the proper kidney during renal transplantation and avoiding vascular injuries. Aim of Study: The present study aimed to describe RA variations and different branching patterns in a section of Egyptians using dissected cadavers and Multi Detector Computed Tomography Angiography (MDCTA). Subjects and Methods: The study included 207 renal pedicles (7 kidneys and 100 CT images). The specimens were examined for morphological patterns of RA. MDCTA images were evaluated for the level of origin, length, caliber and presence of additional renal arteries. Results: The renal arteries in the dissected specimens showed fork (duplicate and triplicate) and ladder patterns. The level of origin of RA in MDCTA images was at L1 (52%), L2 (32%), L1-L2 intervertebral disc (11%), T12-L1 intervertebral disc (3%), T12 (1.5%) and L2-L3 intervertebral disc (0.5%). The mean caliber of the left RA was greater than the right RA (left 6.99 ± 1.47mm, right 6.55 ± 1.51mm, p=0.003). Out of 200 renal pedicles, 21 (10.5%) additional arteries were observed in the form of 13 (6.5%) accessory renal arteries, 2 (1%) aberrant superior polar arteries, 2 (1%) superior polar arteries, 3 (1.5%) aberrant inferior polar arteries and 2 (1%) dual renal arteries. The most commonly seen branching pattern was the hilar (82%), followed by prehilar (11.5%) then intaparynchymal branching pattern (6.5%). Conclusion: Variations of RA are common in Egyptian population. The most important are the presence of additional arteries and different branching patterns. Variations in renal vasculature in relation to population should be taken in consideration during urological interventions.

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Section: Discussionmentioning

confidence: 92%

Variations in Renal Artery in Egyptian Population: Cadaveric and Angiographic Study

Awad¹,

Farid

2019

The Medical Journal of Cairo University

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“…However, the classic illustration of the renal vasculature, formed by one renal artery and one renal vein, occurs in ≤25% of cases. 1 The increased use of laparoscopic nephrectomy and nephron-sparing surgeries has propelled the necessity for a more comprehensive radiological evaluation of the renal vascular anatomy. 2 Conventional angiography was once considered to be the gold standard for the analysis of renal vasculature.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of renal vasculature and its variants by CT angiography

et al. 2022

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Background: Kidneys are a pair of retroperitoneal organs supplied by a single renal artery and vein. However, the classic illustration of the renal vasculature, formed by one renal artery and one renal vein, occurs in ≤25% of cases. MDCT angiography is presently the most preferred investigation for assessing prospective renal donors. Aims and Objectives: This study aims to familiarize urologists with the variations found in the renal vascular system, emphasizing prevalence, the adequate, appropriate terms, and the clinical and surgical implications involved. Materials and Methods: A cross-sectional study in 50 patients clinically indicated to undergo CT Renal angiographic study over 2 years is included in the study. This study was carried out to look for any anatomical variants in renal vasculature. CT examination was performed on a multidetector 16 slice CT Siemens scanner in the department of radiodiagnosis. Once conventional CT is done, the data obtained can produce 3D post-processing images that simulate conventional angiograms. Results: Out of 50 patients, single renal arteries are present in 27, and multiple renal arteries are present in 23 patients. Out of 27 patients with single renal arteries, 22.2 % has perihilar arterial branching. The most common variant was accessory renal arteries, which are found in 56% of individuals, followed by aberrant renal arteries found in 30% of individuals. Double renal arteries are found in 8.7% and triple renal arteries in 4.3% of cases. Out of 50 patients, 48 patients have a single renal vein, whereas two patients have supernumerary veins. The present study found right renal vein duplication in only 2% of patients. Conclusion: Renal arteries and veins show numerous variations in their origin sites, numbers, course, and division patterns. These variants exist in the population with high prevalence and are thus crucial in preoperative and intra-operative analysis for better prognosis and reduced complications. Preoperative CT evaluation of renal vasculature using MDCT angiography helps depict the presence or absence of renal arterial and venous variants.

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CT angiography of renal arteries: anatomy, variants and its importance in the living donor.

Cited by 2 publications

References 15 publications

Variations in Renal Artery in Egyptian Population: Cadaveric and Angiographic Study

Variations in Renal Artery in Egyptian Population: Cadaveric and Angiographic Study

Evaluation of renal vasculature and its variants by CT angiography

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