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Catheter Cardiovasc Interv. 2014 Nov 1;84(5):785-93. doi: 10.1002/ccd.25467. Epub 2014 Mar 18.

Standardizing radiation dose reporting in the pediatric cardiac catheterization laboratory-a multicenter study by the CCISC (Congenital Cardiovascular Interventional Study Consortium).

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1
Children's Hospital of Michigan, Detroit, Michigan.

Abstract

OBJECTIVES:

We examine normalized air Kerma area product (PKA ) by body weight (PKA /BW) as a reference value of radiation dose and benchmark PKA /BW in pediatric laboratories using a multicenter registry database.

BACKGROUND:

Reduction of radiation dose is an important quality improvement task in pediatric cardiac catheterization laboratories. Physicians need to agree on a standard method of reporting radiation dose that would allow comparisons to be made between operators and institutions.

METHODS:

This was a multicenter observational study of radiation dose in pediatric laboratories. Patient demographic, procedural and radiation data including fluoroscopic time and PKA (µGy m(2) ) were analyzed. PKA /BW was obtained by indexing PKA to body weight.

RESULTS:

A total of 8,267 pediatric catheterization procedures (age <18 years) were included from 16 institutions. The procedures consisted of diagnostic (n = 2,827), transplant right ventricular (RV) biopsy (n = 1,172), and interventional catheterizations (n = 4268). PKA correlated with body weight better than with age and best correlated with weight-fluoroscopic time product. PKA /BW showed consistent values across pediatric ages. Interventional catheterizations had the highest PKA /BW (50th, 75th, and 90th percentiles: 72, 151, and 281 μGy m(2) /kg), followed by diagnostic (59, 105, and 175 μGy m(2) /kg) and transplant RV biopsy (27, 79, and 114 μGy m(2) /kg).

CONCLUSION:

PKA /BW appeared to be the most reliable standard to report radiation dose across all procedure types and patient age. We recommend PKA /BW to be used as the standard unit in documenting radiation usage in pediatric laboratories and can be used to evaluate strategies to lower radiation dosage in pediatric patients undergoing cardiac catheterizations. © 2014 Wiley Periodicals, Inc.

KEYWORDS:

air Kerma area product; body weight; multicenter study; pediatric cardiac catheterization laboratory; radiation dose

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PMID:
24585540
DOI:
10.1002/ccd.25467
[Indexed for MEDLINE]
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