ISSN 1305-3825 | E-ISSN 1305-3612
Interventional Radiology - Original Article
Percutaneous nephrolithotripsy: C-arm CT with 3D virtual navigation in non-dilated renal collecting systems
1 Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, People’s Republic of China  
2 Department of Interventional Radiology, The People’s First Hospital of Xinxiang, Henan, People’s Republic of China  
Diagn Interv Radiol ; : -


PURPOSE: Evaluate the clinical superiority of using C-arm CT to establish percutaneous nephrolithotripsy (PCNL) accesses for patients with non-dilated renal collecting systems.


METHODS: From May 2014 to May 2015, 33 patients underwent C-arm CT guided puncture to establish PCNL accesses after ultrasound-guided nephrostomy attempts failure. The technical success, procedure details, patient radiation, complications and stone-free rate were recorded.


RESULTS: The technical success rate was 97.0% (32/33) with mean puncture scoreing 4.5/5. Mean puncture, dilation and fragmentation times were 17.9±6.0, 12.6±3.9 and 33.1±8.8 minutes, respectively. An exposure dose was 4.8±2.1 mSv without serious complications. Stone free rate was 93.8%.



CONCLUSIONS: C-arm CT is a useful tool to establish PCNL accesses especially in the cases of upper pole accesses or complicated anatomy.

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