Examination of Patient Skin Dose during Abdominal Interventional Radiology Using a GAF System
| Autor: | Shigehumi Kadohisa, Hiroyuki Wakasa, Yoshitada Nakagiri, Taketo Kawamura, T. Katsuda, Akitami Matsushita |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
medicine.medical_specialty
Film Dosimetry Dosimeter Percutaneous medicine.diagnostic_test business.industry Radiography Interventional radiology General Medicine Radiation Dosage Radiography Interventional Skin dose Threshold dose medicine.anatomical_structure Absorbed dose Abdomen Humans Medicine Radiology business Skin |
| Zdroj: | Japanese Journal of Radiological Technology. 63:586-594 |
| ISSN: | 1881-4883 0369-4305 |
| DOI: | 10.6009/jjrt.63.586 |
| Popis: | Radiation-induced skin injury caused by interventional radiology(IVR)is a deterministic effect. If exposure dose exceeds threshold dose, injuries may occur. It therefore is important to understand the maximum exposure dose in skin. The purpose of this study was to determine the maximum exposure dose and its dose distribution. Moreover, to analyze the factors from measuring the absorbed dose in the incoming radiation side, a film-type dosimeter was used. When the measured results were determined in terms of the clinical aspect, fluoroscopic time(total time)in procedure, it ranged from 3.3 to 64.0 minutes, and DSA images obtained ranged from 8 to 280 images. Absorbed dose ranged from 0.3 to 6.0 Gy, with an average dose of 3.2 Gy. It thus exceeded 2 or 3 Gy, which was the threshold dose of temporary erythematic or depilation in 10 of 14 cases. The maximum dose was 6.0 Gy for a procedure of percutaneous transhepatic obliteration. The maximum exposure dose can be determined objectively by using a film-type dosimeter. It was also possible to grasp the overall dose distribution visually. |
| Databáze: | OpenAIRE |
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