The superior aspect of the perirenal space: could it be depicted by dual-source CTin vivoin adults

Abstract

This study was conducted in vivo in adults by high-resolution DSCT, and more samples could be provided.

Medial pathway patterns of the right retromesenteric plane: anatomical investigation using MDCT in patients with acute pancreatitis and pyelonephritis

“…1,5214,16-18, 21 Meyers et al 9 reported that the anterior renal fascia (retromesenteric plane) and the posterior renal fasciae (retrorenal plane) fused with each other on the lateral side; they were firmly fixed to each other above the adrenal gland and were connected to the diaphragmatic fascia. However, some investigators 15,21 reported that the renal fascia (retromesenteric plane) fuses with the parietal peritoneum at the level of attachment of the transverse mesocolon.…”

“…Of the 140 patients suspected of having acute pancreatitis on MDCT, 134 were diagnosed as such based on diagnostic criteria. 24 Of these 134 patients, those with ascites surrounding the right retromesenteric plane (n 5 6), renal cell carcinoma (n 5 1), retroperitoneal neoplasms (n 5 2), hypoalbuminaemia (serum albumin level ,3.0 g dl 21 ; n 5 6) and a history of abdominal surgery (n 5 7) were excluded. The number of patients with acute pancreatitis in the final study group was 112 (73 males and 39 females; mean age, 61 years; age range, 21-89 years).…”

“…flank pain, suprapubic pain, urinary frequency, bacteriuria, dysuria or haematuria and the elevation of serum C-reactive protein levels (reference value ,5 mg l 21 ) and blood white cell count (reference value, 3.5-8.8 3 10 9 l 21 )]. Of these 129 patients, those with the following characteristics were excluded: ascites surrounding the right retromesenteric plane (n 5 1), renal cell carcinomas (n 5 4), retroperitoneal neoplasms (n 5 2), hypoalbuminaemia (serum albumin level , 3.0 g dl 21 ) (n 5 3) and a history of abdominal surgery (n 5 5).…”

“…In 37 patients, unenhanced CT was followed by single-phase contrast-enhanced CT obtained at 100 s after the start of contrast material infusion. A total of 100 ml of contrast medium (Iopamiron ™ 370; Bayer Schering Pharma, Berlin, Germany) was infused at a rate of 3 ml s 21 by means of a power injector in all of these patients. In the remaining 21 patients, only unenhanced CT was performed.…”

“…1,[6][7][8]10 In many previous literature, configurations of the retroperitoneal planes have been analyzed by using cadaveric models and investigating the distribution of the thickened fascial planes and fluid collections in patients with retroperitoneal pathologies. 1,3,[5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21] However, there have been only two previous literature regarding the medial pathways of the right retromesenteric plane. 3,9 The right retromesenteric plane separating the anterior pararenal space from the perirenal space is thought to be composed of the left leaf of the primary mesocolon, primary parietal peritoneum and anterior renal fascia in front of the right kidney, and the right leaf of the primary mesoduodenum, primary parietal peritoneum and anterior renal fascia behind the pancreatic head and descending duodenum ( Figure 1).…”