Zobrazeno 1 - 10
of 34
pro vyhledávání: '"J. Richard Choi"'
Autor:
J. Richard Choi, Perry J. Pickhardt, Andrew J. Dwyer, Jiamin Liu, Jianhua Yao, Sanket Pattanaik, Ronald M. Summers
Publikováno v:
Obesity. 23:408-414
Objective To determine the association between pericolonic fat and colorectal polyps using CT colonography (CTC). Methods A total of 1169 patients who underwent CTC and optical colonoscopy on the same day were assessed. Pericolonic fat was measured o
Autor:
Bhavya Rehani, J. Richard Choi, Jianhua Yao, Ronald M. Summers, Perry J. Pickhardt, Daniel L. Sussman, Jiamin Liu, Andrew J. Dwyer
Publikováno v:
American Journal of Roentgenology. 199:48-57
The purpose of this article is to determine whether there is an association between visceral adiposity measured on CT colonography (CTC) and colorectal polyps.Patients who underwent CTC and same-day optical colonoscopy (n = 1186) were analyzed. Visce
Autor:
Jianhua Yao, Ronald M. Summers, J. Richard Choi, Jiamin Liu, Suvimol Hill, Nicolai Baecher, Perry J. Pickhardt
Publikováno v:
Journal of Computer Assisted Tomography. 35:212-216
PURPOSE To show the feasibility of calculating the bone mineral density (BMD) from computed tomographic colonography (CTC) scans using fully automated software. MATERIALS AND METHODS Automated BMD measurement software was developed that measures the
Autor:
Donald W. Jensen, Bhavya Rehani, Ronald M. Summers, Perry J. Pickhardt, Linda Morris Brown, Brooks D. Cash, Jiamin Liu, Duncan S. Barlow, Adeline Louie, Phillip Stafford, Nicholas Petrick, J. Richard Choi
Publikováno v:
Academic Radiology. 17:948-959
Rationale and Objectives To determine whether the display of computer-aided detection (CAD) marks on individual polyps on both the supine and prone scans leads to improved polyp detection by radiologists compared to the display of CAD marks on indivi
Publikováno v:
American Journal of Roentgenology. 193:1296-1304
OBJECTIVE. The ability to accurately locate a polyp found on CT colonography (CTC) at subsequent optical colonoscopy (OC) is an important part of the successful implementation of CTC for colorectal cancer screening. The purpose of this study was to d
Autor:
Jacob M. White, J. Richard Choi, Robert L. Van Uitert, Perry J. Pickhardt, Keshav K. Deshpande, Ronald M. Summers
Publikováno v:
American Journal of Roentgenology. 191:1503-1508
The purpose of this study was to investigate the variability of CT colonography (CTC) scan quality obtained within and between institutions by using previously validated automated quality assessment (QA) software that assesses colonic distention and
Autor:
Adeline Louie, J. Richard Choi, Maruf Haider, Perry J. Pickhardt, Edward M. Iuliano, Nicholas Petrick, Linda Morris Brown, Ronald M. Summers, Srinath C. Yeshwant
Publikováno v:
Radiology. 246:148-156
To evaluate the effect of computer-aided detection (CAD) as second reader on radiologists' diagnostic performance in interpreting computed tomographic (CT) colonographic examinations by using a primary two-dimensional (2D) approach, with segmental, u
Autor:
Robert L. Van Uitert, J. Richard Choi, Marek Franaszek, Perry J. Pickhardt, Ronald M. Summers, Andrew J. Dwyer, Linda Morris Brown, Keshav K. Deshpande, Joel G. Fletcher
Publikováno v:
American Journal of Roentgenology. 189:1457-1463
The purpose of this study was to validate automated quality assessment (QA) software for CT colonography (CTC) by comparing results obtained with the software with results of interpretation by radiologists in the assessment of colonic distention and
Autor:
Adam Huang, Perry J. Pickhardt, Nicholas Petrick, Dave A. Roy, Ronald M. Summers, J. Richard Choi, Marek Franaszek
Publikováno v:
Radiology. 243:551-560
This HIPAA-compliant study, with institutional review board approval and informed patient consent, was conducted to retrospectively develop a teniae coli-based circumferential localization method for guiding virtual colon navigation and colonic polyp
Publikováno v:
Journal of Computer Assisted Tomography. 30:51-57
Although oral contrast agents are known to improve the accuracy of CT colonography (CTC) by tagging fluid and stool, it is not well recognized that oral contrast also adheres to the surface of polyps. The authors' objective was to quantitate the freq