Percutaneous Renal Tumor Ablation: Radiation Exposure During Cryoablation and Radiofrequency Ablation

Introduction Once reserved solely for non-surgical cases, percutaneous ablation is becoming an increasingly popular treatment option for a wider array of patients with small renal masses and the radiation risk needs to be better defined as this transition continues. Materials and Methods Retrospecti...

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Bibliographic Details
Published in:Cardiovascular and interventional radiology 2016-02, Vol.39 (2), p.233-238
Main Authors: McEachen, James C., Leng, Shuai, Atwell, Thomas D., Tollefson, Matthew K., Friese, Jeremy L., Wang, Zhen, Murad, M. Hassan, Schmit, Grant D.
Format: Article
Language:English
Subjects:
ABLATION
Aged
BIOMEDICAL RADIOGRAPHY
Cardiology
Catheter Ablation - methods
Clinical Investigation
Cryosurgery - methods
Female
Humans
Imaging
Kidney Neoplasms - surgery
KIDNEYS
Male
Medicine
Medicine & Public Health
NEOPLASMS
Nuclear Medicine
PATIENTS
RADIATION DOSES
Radiation Exposure
Radio Waves
Radiology
RADIOLOGY AND NUCLEAR MEDICINE
RADIOWAVE RADIATION
Retrospective Studies
REVIEWS
Risk Factors
SKIN
SURGERY
Treatment Outcome
Ultrasound
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Summary:Introduction Once reserved solely for non-surgical cases, percutaneous ablation is becoming an increasingly popular treatment option for a wider array of patients with small renal masses and the radiation risk needs to be better defined as this transition continues. Materials and Methods Retrospective review of our renal tumor ablation database revealed 425 patients who underwent percutaneous ablation for treatment of 455 renal tumors over a 5-year time period. Imparted radiation dose information was reviewed for each procedure and converted to effective patient dose and skin dose using established techniques. Statistical analysis was performed with each ablative technique. Results For the 331 cryoablation procedures, the mean DLP was 6987 mGycm (SD = 2861) resulting in a mean effective dose of 104.7 mSv (SD = 43.5) and the mean CTDI vol was 558 mGy (SD = 439) resulting in a mean skin dose of 563.2 mGy (SD = 344.1). For the 124 RFA procedures, the mean DLP was 3485 mGycm (SD = 1630) resulting in a mean effective dose of 50.3 mSv (SD = 24.0) and the mean CTDI vol was 232 mGy (SD = 149) resulting in a mean skin dose of 233.2 mGy (SD = 117.4). The difference in patient radiation exposure between the two renal ablation techniques was statistically significant ( p  
ISSN:0174-1551
1432-086X
DOI:10.1007/s00270-015-1169-1