JOURNAL OF SHANDONG UNIVERSITY (HEALTH SCIENCES) ›› 2012, Vol. 50 ›› Issue (3): 71-.

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Unenhanced spiral CT localization combined with C-arm in minimally invasive
percutaneous nephrolithotomy(MPCNL) for complex renal calculi

JIANG Li-cheng1,2, XU Zhong-hua1, ZHANG Ying-chen2,
WANG Xue-ting2, DING Ji-yang2, CHENG Yu-feng2   

  1. 1. Department of Urology, Qilu Hospital of Shandong University, Jinan 250012, Shandong, China；
    2. Department of Urology, The NO.148 hospital of PLA, Zibo 255300, Shandong, China
  • Received:2012-12-23 Online:2012-03-10 Published:2012-03-10

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Abstract:

Objective   To investigate the value of non-contrast-enhanced spiral CT-assistant localization combined with C-arm in the treatment of complex renal calculi by minimally invasive percutaneous nephrolithotomy(mPCNL). Methods   50 patients with complex renal calculi underwent a non-contrast-enhanced spiral CT scan localization to simulate intraoperative posture before the operation and accepted the mPCNL treatment combined with C-arm (CT group). Another 38 patients with complex renal calculi who directly underwent puncture by C-arm localization were studied as the control group(Carm group). Results   In the CT group, the average number of punctures［(1.27±0.56) per side vs (2.28±1.19) punctures per side, P<0.01］, channel building time［(5.51±2.31)minutes per side vs (11.36±6.15) minutes per side, P<0.01］, C-arm usage counter［(2.53±0.77) vs （7.44±1.87), P<0.01］ ,and X-ray exposure time for surgeons［(0.32±0.73) minutes per side vs (0.53±0.28)minutes per side, P<0.05］ and patients ［(0.43±0.72) minutes per side vs (0.72±0.28) minutes per side, P<0.01］were significantly lower than those of the C-arm group. Conclusion   Non-contrast-enhanced spiral CT localization combined with C-arm can contribute to percutaneous renal puncture in the complex renal calculi treatment by mPCNL, and effectively reduce the C-arm usage counter and intraoperative radiation exposure time.

Key words: No-contrast-enhanced spiral CT scan； C-arm, puncture localization； Complex renal calculi； Minimally invasive percutaneous nephrolithotomy

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