Abstract:
BACKGROUND AND PURPOSE:The efficacy of computed tomography (CT) in detailing upper urinary tract calculi is well established. There is no established acceptable annual recommended limit for medical exposure, yet the global accepted upper limit for occupational radiation exposure is <50 millisieverts (mSv) in any one year. We sought to appreciate the CT and fluoroscopic radiation exposure to our patients undergoing endoscopic removal of upper tract calculi during the periprocedure period. PATIENTS AND METHODS:All patients undergoing upper urinary endoscopic stone removal between 2005 and 2009 were identified. To calculate the cumulative radiation exposure, we included all ionizing radiation imaging performed during a periprocedure period, which we defined as ≤90 days pre- and post-therapeutic procedure. RESULTS:A total of 233 upper urinary tract therapeutic patient stone procedures were identified; 127 patients underwent ureteroscopy (URS) and 106 patients underwent percutaneous nephrolithotomy (PCNL). A mean 1.58 CTs were performed per patient. Ninety (38.6%) patients underwent ≥2 CTs in the periprocedure period, with an average number in this group of 2.49 CT/patient, resulting in approximately 49.8 mSv of CT radiation exposure. Patients who were undergoing URS were significantly more likely to have multiple CTs (P=0.003) than those undergoing PCNL. Median fluoroscopic procedure exposures were 43.3 mGy for patients who were undergoing PCNL and 27.6 mGy for those patients undergoing URS. CONCLUSIONS:CT radiation exposure in the periprocedure period for patients who were undergoing endoscopic upper tract stone removal is considerable. Added to this is the procedure-related fluoroscopic radiation exposure. Urologic surgeons should be aware of the cumulative amount of ionizing radiation received by their patients from multiple sources.
journal_name
J Endouroljournal_title
Journal of endourologyauthors
Jamal JE,Armenakas NA,Sosa RE,Fracchia JAdoi
10.1089/end.2010.0695subject
Has Abstractpub_date
2011-11-01 00:00:00pages
1747-51issue
11eissn
0892-7790issn
1557-900Xjournal_volume
25pub_type
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pub_type: 杂志文章,随机对照试验
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pub_type: 临床试验,杂志文章
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pub_type: 临床试验,杂志文章
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