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Patient dose estimation for multi-detector-row CT examinations.
Radiat Prot Dosimetry. 2008; 128(1):98-105.RP

Abstract

The spread of Multi-detector-row computed tomography (MDCT) has been remarkable. Here, various organ and tissue doses were evaluated with six types of MDCT scanners in common use in Japan; using thermoluminescence dosimeters and anthropomorphic phantoms under condition of routine clinical examinations of the chest in adult and child, of the head in child and of the abdomen-pelvis in adult. Estimated lung doses and averaged effective dose in chest examinations were 19.2 +/- 2.03 mGy and 9.54 +/- 0.90 mSv for the adult and 15.7 +/- 1.88 mGy and 7.42 +/- 0.82 mSv for the child phantom, respectively. The numerical difference between effective dose and organ or tissue doses was about 2-2.5 times. For the adult abdomen-pelvis examinations, averaged effective dose was 13.0 +/- 3.72 mSv. Averaged effective dose for the child head examinations was 2.6 +/- 1.32 mSv. In one case, the dose approached 80 mGy for the brain in the head examination, giving a difference from the effective dose of 10 times or more.

Authors+Show Affiliations

Radiological Protection Section, Research Center for Charged Particle Therapy, National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba, Japan. nisizawa@nirs.gp.jpNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

17595212

Citation

Nishizawa, Kanae, et al. "Patient Dose Estimation for Multi-detector-row CT Examinations." Radiation Protection Dosimetry, vol. 128, no. 1, 2008, pp. 98-105.
Nishizawa K, Mori S, Ohno M, et al. Patient dose estimation for multi-detector-row CT examinations. Radiat Prot Dosimetry. 2008;128(1):98-105.
Nishizawa, K., Mori, S., Ohno, M., Yanagawa, N., Yoshida, T., Akahane, K., Iwai, K., & Wada, S. (2008). Patient dose estimation for multi-detector-row CT examinations. Radiation Protection Dosimetry, 128(1), 98-105.
Nishizawa K, et al. Patient Dose Estimation for Multi-detector-row CT Examinations. Radiat Prot Dosimetry. 2008;128(1):98-105. PubMed PMID: 17595212.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Patient dose estimation for multi-detector-row CT examinations. AU - Nishizawa,Kanae, AU - Mori,Shin-Ichiro, AU - Ohno,Mari, AU - Yanagawa,Noriyuki, AU - Yoshida,Takashi, AU - Akahane,Keiichi, AU - Iwai,Kazuo, AU - Wada,Shin-Ichi, Y1 - 2007/06/26/ PY - 2007/6/28/pubmed PY - 2008/9/5/medline PY - 2007/6/28/entrez SP - 98 EP - 105 JF - Radiation protection dosimetry JO - Radiat Prot Dosimetry VL - 128 IS - 1 N2 - The spread of Multi-detector-row computed tomography (MDCT) has been remarkable. Here, various organ and tissue doses were evaluated with six types of MDCT scanners in common use in Japan; using thermoluminescence dosimeters and anthropomorphic phantoms under condition of routine clinical examinations of the chest in adult and child, of the head in child and of the abdomen-pelvis in adult. Estimated lung doses and averaged effective dose in chest examinations were 19.2 +/- 2.03 mGy and 9.54 +/- 0.90 mSv for the adult and 15.7 +/- 1.88 mGy and 7.42 +/- 0.82 mSv for the child phantom, respectively. The numerical difference between effective dose and organ or tissue doses was about 2-2.5 times. For the adult abdomen-pelvis examinations, averaged effective dose was 13.0 +/- 3.72 mSv. Averaged effective dose for the child head examinations was 2.6 +/- 1.32 mSv. In one case, the dose approached 80 mGy for the brain in the head examination, giving a difference from the effective dose of 10 times or more. SN - 0144-8420 UR - https://www.unboundmedicine.com/medline/citation/17595212/Patient_dose_estimation_for_multi_detector_row_CT_examinations_ L2 - https://academic.oup.com/rpd/article-lookup/doi/10.1093/rpd/ncm244 DB - PRIME DP - Unbound Medicine ER -