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The utility of 64 channel multidetector CT angiography for evaluating the renal vascular anatomy and possible variations: a pictorial essay.

Kumar S, Neyaz Z, Gupta A - Korean J Radiol (2010)

Bottom Line: The increased use of laparoscopic nephrectomy and nephron-sparing surgery has prompted the need for a more detailed radiological evaluation of the renal vascular anatomy.Multidetector CT angiography is a fast and accurate modality for assessing the precise anatomy of the renal vessels.In this pictorial review, we present the multidetector CT angiography appearances of the normal renal vascular anatomy and a spectrum of various anomalies that require accurate vascular depiction before undergoing surgical treatment.

View Article: PubMed Central - PubMed

Affiliation: Department of Radiodiagnosis, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India.

ABSTRACT
The increased use of laparoscopic nephrectomy and nephron-sparing surgery has prompted the need for a more detailed radiological evaluation of the renal vascular anatomy. Multidetector CT angiography is a fast and accurate modality for assessing the precise anatomy of the renal vessels. In this pictorial review, we present the multidetector CT angiography appearances of the normal renal vascular anatomy and a spectrum of various anomalies that require accurate vascular depiction before undergoing surgical treatment.

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Schematic diagram showing embryogenesis of inferior vena cava and renal veins.A. Three pairs of veins (posterior cardinal → subcardinal → supracardinal veins) appear in succession with regression of some portions and persistence of others. Renal collar is formed by intersupracardinal anastomosis dorsally, intersubcardinal anastomosis ventrally and supra-subcardinal anastomosis laterally. Primitive dorsal and ventral renal veins drain into supra-subcardinal anastomoses. Both dorsal renal veins usually regress.B. After completion of embryogenesis. Right renal vein is formed by ventral limb of primitive right renal vein. Left renal vein develops from intersubcardinal anastomosis, left supra-subcardinal anastomosis and ventral limb of primitive left renal vein. Dorsal intersupracardinal anastomosis regresses.
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Figure 3: Schematic diagram showing embryogenesis of inferior vena cava and renal veins.A. Three pairs of veins (posterior cardinal → subcardinal → supracardinal veins) appear in succession with regression of some portions and persistence of others. Renal collar is formed by intersupracardinal anastomosis dorsally, intersubcardinal anastomosis ventrally and supra-subcardinal anastomosis laterally. Primitive dorsal and ventral renal veins drain into supra-subcardinal anastomoses. Both dorsal renal veins usually regress.B. After completion of embryogenesis. Right renal vein is formed by ventral limb of primitive right renal vein. Left renal vein develops from intersubcardinal anastomosis, left supra-subcardinal anastomosis and ventral limb of primitive left renal vein. Dorsal intersupracardinal anastomosis regresses.

Mentions: Variations of the renal veins and IVC are related to the developmental processes in the fetus (9, 10). The renal venous collar is made up laterally by the paired dorsal and ventral primitive renal veins on each side, which are linked to the centrally paired ventral subcardinal and dorsal supracardinal veins, and anastomoses of these four craniocaudally oriented subcardinal-supracardinal veins (Fig. 3). Different anatomic presentations of the renal veins are encountered depending on the persistence or regression of different components of this primitive circumaortic venous network.


The utility of 64 channel multidetector CT angiography for evaluating the renal vascular anatomy and possible variations: a pictorial essay.

Kumar S, Neyaz Z, Gupta A - Korean J Radiol (2010)

Schematic diagram showing embryogenesis of inferior vena cava and renal veins.A. Three pairs of veins (posterior cardinal → subcardinal → supracardinal veins) appear in succession with regression of some portions and persistence of others. Renal collar is formed by intersupracardinal anastomosis dorsally, intersubcardinal anastomosis ventrally and supra-subcardinal anastomosis laterally. Primitive dorsal and ventral renal veins drain into supra-subcardinal anastomoses. Both dorsal renal veins usually regress.B. After completion of embryogenesis. Right renal vein is formed by ventral limb of primitive right renal vein. Left renal vein develops from intersubcardinal anastomosis, left supra-subcardinal anastomosis and ventral limb of primitive left renal vein. Dorsal intersupracardinal anastomosis regresses.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2864862&req=5

Figure 3: Schematic diagram showing embryogenesis of inferior vena cava and renal veins.A. Three pairs of veins (posterior cardinal → subcardinal → supracardinal veins) appear in succession with regression of some portions and persistence of others. Renal collar is formed by intersupracardinal anastomosis dorsally, intersubcardinal anastomosis ventrally and supra-subcardinal anastomosis laterally. Primitive dorsal and ventral renal veins drain into supra-subcardinal anastomoses. Both dorsal renal veins usually regress.B. After completion of embryogenesis. Right renal vein is formed by ventral limb of primitive right renal vein. Left renal vein develops from intersubcardinal anastomosis, left supra-subcardinal anastomosis and ventral limb of primitive left renal vein. Dorsal intersupracardinal anastomosis regresses.
Mentions: Variations of the renal veins and IVC are related to the developmental processes in the fetus (9, 10). The renal venous collar is made up laterally by the paired dorsal and ventral primitive renal veins on each side, which are linked to the centrally paired ventral subcardinal and dorsal supracardinal veins, and anastomoses of these four craniocaudally oriented subcardinal-supracardinal veins (Fig. 3). Different anatomic presentations of the renal veins are encountered depending on the persistence or regression of different components of this primitive circumaortic venous network.

Bottom Line: The increased use of laparoscopic nephrectomy and nephron-sparing surgery has prompted the need for a more detailed radiological evaluation of the renal vascular anatomy.Multidetector CT angiography is a fast and accurate modality for assessing the precise anatomy of the renal vessels.In this pictorial review, we present the multidetector CT angiography appearances of the normal renal vascular anatomy and a spectrum of various anomalies that require accurate vascular depiction before undergoing surgical treatment.

View Article: PubMed Central - PubMed

Affiliation: Department of Radiodiagnosis, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India.

ABSTRACT
The increased use of laparoscopic nephrectomy and nephron-sparing surgery has prompted the need for a more detailed radiological evaluation of the renal vascular anatomy. Multidetector CT angiography is a fast and accurate modality for assessing the precise anatomy of the renal vessels. In this pictorial review, we present the multidetector CT angiography appearances of the normal renal vascular anatomy and a spectrum of various anomalies that require accurate vascular depiction before undergoing surgical treatment.

Show MeSH
Related in: MedlinePlus