Mamoru Kato PhD, Presenter: Nothing to Disclose

Koichi Chida PhD, Abstract Co-Author: Nothing to Disclose

Takashi Moritake MD, PhD, Abstract Co-Author: Nothing to Disclose

Tadaya Sato, Abstract Co-Author: Nothing to Disclose

Tetsuo Tosa MS, Abstract Co-Author: Nothing to Disclose

Hajime Oosaka RT, Abstract Co-Author: Nothing to Disclose

Ken Kadowaki MD, Abstract Co-Author: Nothing to Disclose

Masafumi Sasaki RT, Abstract Co-Author: Nothing to Disclose

Fumiaki Sasaki BSC, Abstract Co-Author: Nothing to Disclose

Kazunori Matsumoto BSC, Abstract Co-Author: Nothing to Disclose

To determine the conditions for utilization of direct measurement methods for measuring the patient entrance skin dose (ESD) in interventional cardiology procedures. To estimate the maximum ESD in real-time based on direct measurement method.  

Direct measurement methods of the ESD Skin dose monitor (SDM), thermoluminescence dosimeter (TLD), radiophotoluminescence dosimeter (RPLD), dosimetry film, and color indicator methods were used; each methods had its own advantages and disadvantages. Evaluation of ESD in 80 percutaneous coronary interventions (PCIs) By using RPLDs to measure the ESD in PCI, we analyzed the correlation between maximum ESDs and angiographic parameters.   PCI procedures tend to require extended fluoroscopic exposure times with various angles of X-ray projection. Thus, it is of vital importance to evaluate the maximum ESD and site through a series of PCIs. It is difficult to determine the maximum ESD with SDM. TLD showed fading characteristics. The dosimetry film method tended to overestimate the ESD owing to the distance between the table and skin. Identification with the color indicator method is difficult, and slight differences cannot be clearly displayed. The ESDs of 80 PCIs using the RPLDs were a good correlation between maximum ESDs and air kerma at the interventional reference point.    

http://abstract.rsna.org/uploads/2014/14004786/14004786_t9ru.pdf

Kato, M, Chida, K, Moritake, T, Sato, T, Tosa, T, Oosaka, H, Kadowaki, K, Sasaki, M, Sasaki, F, Matsumoto, K, Patient Dose Measurement Methods in Interventional Cardiology Procedures.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14004786.html