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• W4245758873 abstract "Objectives: To study the endoluminal catheter-based ultrasonographic features of renal pelvis neoplasm by comparing with retrograde urography.Methods: Sixty models of neoplasms of renal pelvis in pigs were set up. The unequirotal and difform porcine meat, which were simulated as neoplasms, adhered to the different parts (upper, middle, lower pole; ventral or dorsal wall) of the renal pelvis .The renal pelvis neoplasms in 60 excised kidneys were evaluated by endoluminal catheter-based ultrasonography and retrograde urography, respectively.Results: Significant differences were found in the detectable rate of neoplasm between the ultrasonography and retrograde urography (98.9 % versus 58.6 %, p < 0.01). No significant differences in the unequirotal and difform neoplasms by ultrasonography (p > 0.05), but the results were reversed by retrograde urography (p < 0.01). Both imaging techniques could evaluate the location of the neoplasm, but retrograde urography could not demonstrate the neoplasm from ventral or dorsal wall of renal pelvis. Endoluminal ultrasonography could display the echo-texture of the neoplasms and measure the its size precisely, but difficult to display lesions less than 1cm by urography.Conclusions: Endoluminal ultrasound has apparent advantages over retrograde urography especially in detecting the small size of renal pelvis neoplasm, which plays an important role in clinical applications. Objectives: To study the endoluminal catheter-based ultrasonographic features of renal pelvis neoplasm by comparing with retrograde urography. Methods: Sixty models of neoplasms of renal pelvis in pigs were set up. The unequirotal and difform porcine meat, which were simulated as neoplasms, adhered to the different parts (upper, middle, lower pole; ventral or dorsal wall) of the renal pelvis .The renal pelvis neoplasms in 60 excised kidneys were evaluated by endoluminal catheter-based ultrasonography and retrograde urography, respectively. Results: Significant differences were found in the detectable rate of neoplasm between the ultrasonography and retrograde urography (98.9 % versus 58.6 %, p < 0.01). No significant differences in the unequirotal and difform neoplasms by ultrasonography (p > 0.05), but the results were reversed by retrograde urography (p < 0.01). Both imaging techniques could evaluate the location of the neoplasm, but retrograde urography could not demonstrate the neoplasm from ventral or dorsal wall of renal pelvis. Endoluminal ultrasonography could display the echo-texture of the neoplasms and measure the its size precisely, but difficult to display lesions less than 1cm by urography. Conclusions: Endoluminal ultrasound has apparent advantages over retrograde urography especially in detecting the small size of renal pelvis neoplasm, which plays an important role in clinical applications." @default.
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• W4245758873 date "2006-05-01" @default.
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• W4245758873 doi "https://doi.org/10.1016/j.ultrasmedbio.2006.02.559" @default.
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