Abstract：
OBJECTIVE:To improve the understanding of the epidemiology of renal cortical neoplasms through pretreatment biopsy, we evaluated a facilitated ultrasound targeting (FUT) technology. The technology allows a needle to be passed through the transducer probe and guided along a virtual dotted line on the monitor. We compared the FUT with standard percutaneous biopsy (PB) technique. MATERIALS AND METHODS:Forty-eight participants with various levels of training were recruited. Participants performed ultrasound-guided biopsies on phantom models using FUT and the standard biopsy technique in a randomized sequence. The phantom models consisted of pimento olives embedded in an opaque mold of Metamucil and Knox gelatin. Patients were given up to 10 attempts to achieve 3 complete specimens from the olives. Patients rated each biopsy technique. Results were stratified by level of experience. RESULTS:The mean time to obtain 3 complete biopsy specimens was significantly faster for FUT compared with the standard technique (140 seconds vs 246 seconds, P = .0001). The mean number of attempts needed to obtain 3 specimens was significantly less with FUT compared with the standard technique (4.3 vs 5.6 attempts, P = .0007). Patients reported that FUT was significantly easier to use compared with the standard technique (P = .0005). No significant order effect was observed. CONCLUSION:In this in vitro comparison, FUT increased the efficiency and efficacy of PB for users of all experience levels. FUT may allow urologists with limited PB experience to perform the procedure reliably and easily. Clinical evaluation of this technology is actively in progress.
journal_name
Urologyjournal_title
Urologyauthors
Menhadji A,Nguyen V,Cho J,Chu R,Osann K,Bucur P,Patel P,Lusch A,McDougall E,Landman Jdoi
10.1016/j.urology.2013.05.029subject
Has Abstractpub_date
2013-09-01 00:00:00pages
734-7issue
3eissn
0090-4295issn
1527-9995pii
S0090-4295(13)00688-2journal_volume
82pub_type
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