CONTEMPORARY RADIATION DOSES IN INTERVENTIONAL CARDIOLOGY: A NATIONWIDE STUDY OF PATIENT SKIN DOSES IN FINLAND. Issue 2 (14th December 2019)

• Record Type: Journal Article
• Authors: Järvinen, Jukka; Sierpowska, Joanna; Siiskonen, Teemu; Husso, Minna; Järvinen, Hannu; Kiviniemi, Tuomas; Rissanen, Tuomas T; Lindholm, Carita; Matikka, Hanna; Larjava, Heli R S; Mäkelä, Timo J; Strengell, Satu; Eskola, Markku; Parviainen, Teuvo; Hallinen, Elina; Pirinen, Markku; Kivelä, Antti; Teräs, Mika
• Is Part Of: Radiation protection dosimetry. Volume 188:Issue 2(2020)
• Page Start: 181
• Page End: 190
• Publication Date: 2019-12-14
• Subjects: Radiation dosimetry -- Periodicals; Radiation -- Safety measures -- Periodicals; 363.1799
• DOI: 10.1093/rpd/ncz273
• Languages: English
• ISSNs: 0144-8420

Abstract

Abstract: In contemporary interventional cardiology, for typical elderly patients, the most severe radiation-related harm to patients can be considered to come from skin exposures. In this paper, maximum local skin doses in cardiological procedures are explored with Gafchromic film dosimetry. Film and reader calibrations and reading were performed at the Secondary Standards Dosimetry Laboratory of the Radiation and Nuclear Safety Authority (STUK), and data were gathered from seven hospitals in Finland. As alert levels for early transient erythema, 200 Gycm 2 kerma area product (KAP) and 2000 mGy air kerma levels for transcatheter aortic valve implantations (TAVI) procedures are proposed. The largest doses were measured in TAVI (4158.8 mGy) and percutaneous coronary interventions (PCI) (941.68 mGy). Accuracies of the GE DoseWatch and Siemens CareMonitor skin dose estimates were reasonable, but more results are needed to reliably assess and validate the tools' capabilities and reliabilities. Uncertainty of the Gafchromic dosimetry was estimated as 9.1% for a calibration with seven data points and 19.3% for a calibration with five data points.