307 286

Cited 0 times in

Characteristics of a new cone beam computed tomography

Authors
 Chang-Seo Park  ;  Kee-Deog Kim  ;  Sang-Chul Lee  ;  Ho-Gul Jeong  ;  Hyok Park 
Citation
 Korean Journal of Oral and Maxillofacial Radiology (대한구강악안면방사선학회지), Vol.37(4) : 205-209, 2007 
Journal Title
 Korean Journal of Oral and Maxillofacial Radiology (대한구강악안면방사선학회지) 
ISSN
 1229-8212 
Issue Date
2007
Abstract
PURPOSE: To determine the physical properties of a newly developed cone beam computed tomography (CBCT). MATERIALS AND METHODS: We measured and compared the imaging properties for the indirect-type flat panel detector (FPD) of a new CBCT and the single detector array (SDA) of conventional helical CT (CHCT). RESULTS: First, the modulation transfer function (MTF) of the CBCT were superior to those of the CHCT. Second, the noise power spectrum (NPS) of the CBCT were worse than those of the CHCT. Third, detective quantum efficiency (DQE) of the indirect-type CBCT were worse than those of the CHCT at lower spatial frequencies, but were better at higher spatial frequencies. Although the comparison of contrast-to-noise ratio (CNR) was estimated in the limited range of tube current, CNR of CBCT were worse than those of CHCT. CONCLUSION: This study shows that the indirect-type FPD system may be useful as a CBCT detector because of high resolution.
Files in This Item:
T200701588.pdf Download
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Advanced General Dentistry (통합치의학과) > 1. Journal Papers
2. College of Dentistry (치과대학) > Dept. of Oral and Maxillofacial Radiology (영상치의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Kee Deog(김기덕) ORCID logo https://orcid.org/0000-0003-3055-5130
Park, Chang Seo(박창서)
Park, Hyuk(박혁)
Jeong, Ho Gul(정호걸)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/97002
사서에게 알리기
  feedback

qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse