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KMID : 1131320140160020007
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Journal of Korean Society of Computed Tomographic Technology
2014 Volume.16 No. 2 p.7 ~ p.14
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Study of CT-guided Lung Percutaneous Needle Biopsy (PCNB) Procedures for Dose Reduction and Patient Safety
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Kang Han-Sol
Kim Min-Jung
Lee Ki-Baek
Kim Seon-Ki
Ha Dong-Yoon
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Abstract
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Purpose : To evaluate the efficiency of CT-guided lung percutaneous needle biopsy (PCNB) and to introduce overall biopsy procedures in Asan Medical Center.
Materials and Methods : All examinations were performed using MDCT scanner (Somatom Definition AS, Siemens Healthcare, Germany) with 3mm-slice thickness/increment, 100kV, 25 ref.mAs, B30f kernel and spiral mode. Average procedure time and average number of scan were investigated by PACS or OCS program. Moreover, radiation dose of pre-set protocol and AMC-set protocol were compared using Lung/Chest phantom (Model RS-330, Fluke Biomedical, Everett, USA).
Results : AMC protocol was enough to find out the lesion during the procedure as well as reducing radiation dose. Also, anatomical structures such as fissure, breast, scapula should be considered when we take patients’ posture.
Conclusion : For successful CT-guided lung PCNB, it is important to do our best to reduce radiation to patients, to take an ideal patients’ posture and to make patients breathe steadily. Cooperation between radiologist, nurse, radiological technologist and patients is also important.
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KEYWORD
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CT-guided lung biopsy, biopsy procedure, scan protocol, positioning
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