Source:http://linkedlifedata.com/resource/pubmed/id/16110101
Switch to
| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions |
umls-concept:C0002971,
umls-concept:C0178602,
umls-concept:C0184661,
umls-concept:C0205171,
umls-concept:C0205410,
umls-concept:C0336648,
umls-concept:C0441889,
umls-concept:C1123023,
umls-concept:C1413904,
umls-concept:C1414125,
umls-concept:C1415831,
umls-concept:C1522609,
umls-concept:C1554112,
umls-concept:C1706451
|
| pubmed:issue |
933
|
| pubmed:dateCreated |
2005-8-19
|
| pubmed:abstractText |
Maximum estimated skin doses to patients undergoing coronary angiography procedures were obtained using radiographic slow film and diode dosemeters. Conversion factors of maximum entrance skin dose versus dose-area product (MESD/DAP) for diagnostic (coronary angiography (CA); 20 patients; 2 operators) and interventional procedures (percutaneous transluminal coronary angiography (PTCA); 10 patients; 1 operator) were 4.3 (mean value of 10 CA; operator A), 3.5 (mean value of 10 CA; operator B) and 9.7 (mean value of 10 PTCA; operator B) mGy(Gycm2)(-1), respectively. The results emphasise a need for both operator- and procedure-specific conversion factors. Compared with a single, global factor for all cardiac procedures and/or operators that is commonly applied today, such a refinement is expected to improve the accuracy in skin dose estimations from these procedures. Consequently, reference DAP values used in the clinic to define patients who could suffer from a radiation induced skin injury following a cardiac procedure, should be defined for each operator/procedure. The film technique was found to be superior to the diode in defining conversion factors in this study, and allowed for a rapid and accurate estimation of MESD for each patient. With appropriate positioning of the diode, a combined film/diode technique has a potential use in the training of new angiography operators. The patient body mass index (BMI) value was a good indicator of the variation in average lung dose (critical organ) between patients. The highest lung dose/DAP value was obtained for normal sized patients (BMI: 19-26), and was close to 1.5 mGy(Gycm2)(-1) with both CA and PTCA procedures.
|
| pubmed:language |
eng
|
| pubmed:journal | |
| pubmed:citationSubset |
AIM
|
| pubmed:status |
MEDLINE
|
| pubmed:month |
Sep
|
| pubmed:issn |
0007-1285
|
| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:volume |
78
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
803-9
|
| pubmed:dateRevised |
2010-11-18
|
| pubmed:meshHeading |
pubmed-meshheading:16110101-Angioplasty, Balloon, Coronary,
pubmed-meshheading:16110101-Body Mass Index,
pubmed-meshheading:16110101-Coronary Angiography,
pubmed-meshheading:16110101-Film Dosimetry,
pubmed-meshheading:16110101-Fluoroscopy,
pubmed-meshheading:16110101-Humans,
pubmed-meshheading:16110101-Observer Variation,
pubmed-meshheading:16110101-Radiation Dosage,
pubmed-meshheading:16110101-Skin
|
| pubmed:year |
2005
|
| pubmed:articleTitle |
Skin dose alarm levels in cardiac angiography procedures: is a single DAP value sufficient?
|
| pubmed:affiliation |
Department of Medical Physics, Karolinska University Hospital, Stockholm, 171 76, Sweden.
|
| pubmed:publicationType |
Journal Article
|