Optimal section thickness for detection of polyps at MR: resolution phantom study
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| 024 | 7 | 0 | |a 10.1007/s00261-014-0331-6 |2 doi |
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| 245 | 0 | 0 | |a Optimal section thickness for detection of polyps at MR: resolution phantom study |h [Elektronische Daten] |c [Courtney Moreno, Pardeep Mittal, Nicholas Henson, Deborah Baumgarten, Lauren Alexander, Timothy Hanes, William Small, Hiroumi Kitajima, Jian Kang, John Votaw, John Oshinski, W. Dixon] |
| 520 | 3 | |a Purpose: To determine (1) the sensitivity for detection of small polyps with varying MR slice thicknesses using a resolution phantom; (2) reader confidence in polyp detection; and (3) image acquisition time. Methods: A resolution phantom was created using a 3D printer. Polyp morphologies were sessile (height=diameter), flat (height=1/2 diameter of the base), and pedunculated (stalk length=polyp diameter). Polyp diameters were 5, 7, 10, and 12mm. Images were acquired with section thicknesses of 5, 3, and 1mm. Images were independently reviewed by 4 board-certified radiologists who were blinded to phantom design and sequences parameters. Readers recorded maximal polyp diameter and confidence level that a polyp was present on a 1-100 point scale. Image acquisition time was also recorded. Results: All polyps were detected by all 4 readers in the 5-mm-section thickness series. All polyps were detected by 3 readers in the 3- and 1-mm-section thickness series. The fourth reader identified 11/12 polyps in the 3- and 1-mm-section thickness series. Confidence levels were not statistically significantly different for the different section thicknesses (p=0.28). Increasing the section thickness from 1 to 5mm decreased image acquisition time from 3 min 54s to 41s. Conclusions: Five-millimeter-section thickness was adequate for identification of 5-12mm polyps regardless of shape. Pending further reduction in acquisition time, this prototype sequence holds promise for segmental imaging of the colon with MR colonography. | |
| 540 | |a Springer Science+Business Media New York, 2014 | ||
| 690 | 7 | |a Magnetic resonance imaging |2 nationallicence | |
| 690 | 7 | |a Magnetic resonance colonography |2 nationallicence | |
| 690 | 7 | |a Colorectal cancer |2 nationallicence | |
| 690 | 7 | |a Colonic polyps |2 nationallicence | |
| 700 | 1 | |a Moreno |D Courtney |u Department of Radiology & Imaging Sciences, Emory University School of Medicine, 1364 Clifton Road, NE, 30322, Atlanta, GA, USA |4 aut | |
| 700 | 1 | |a Mittal |D Pardeep |u Department of Radiology & Imaging Sciences, Emory University School of Medicine, 1364 Clifton Road, NE, 30322, Atlanta, GA, USA |4 aut | |
| 700 | 1 | |a Henson |D Nicholas |u Department of Radiology & Imaging Sciences, Emory University School of Medicine, 1364 Clifton Road, NE, 30322, Atlanta, GA, USA |4 aut | |
| 700 | 1 | |a Baumgarten |D Deborah |u Department of Radiology & Imaging Sciences, Emory University School of Medicine, 1364 Clifton Road, NE, 30322, Atlanta, GA, USA |4 aut | |
| 700 | 1 | |a Alexander |D Lauren |u Department of Radiology & Imaging Sciences, Emory University School of Medicine, 1364 Clifton Road, NE, 30322, Atlanta, GA, USA |4 aut | |
| 700 | 1 | |a Hanes |D Timothy |u Department of Radiology & Imaging Sciences, Emory University School of Medicine, 1364 Clifton Road, NE, 30322, Atlanta, GA, USA |4 aut | |
| 700 | 1 | |a Small |D William |u Department of Radiology & Imaging Sciences, Emory University School of Medicine, 1364 Clifton Road, NE, 30322, Atlanta, GA, USA |4 aut | |
| 700 | 1 | |a Kitajima |D Hiroumi |u Department of Radiology & Imaging Sciences, Emory University School of Medicine, 1364 Clifton Road, NE, 30322, Atlanta, GA, USA |4 aut | |
| 700 | 1 | |a Kang |D Jian |u Department of Biostatistics and Bioinformatics, Department of Radiology & Imaging Sciences, Emory University School of Medicine, Atlanta, GA, USA |4 aut | |
| 700 | 1 | |a Votaw |D John |u Department of Radiology & Imaging Sciences, Emory University School of Medicine, 1364 Clifton Road, NE, 30322, Atlanta, GA, USA |4 aut | |
| 700 | 1 | |a Oshinski |D John |u Department of Radiology & Imaging Sciences, Emory University School of Medicine, 1364 Clifton Road, NE, 30322, Atlanta, GA, USA |4 aut | |
| 700 | 1 | |a Dixon |D W. |u Department of Radiology & Imaging Sciences, Emory University School of Medicine, 1364 Clifton Road, NE, 30322, Atlanta, GA, USA |4 aut | |
| 773 | 0 | |t Abdominal Imaging |d Springer US; http://www.springer-ny.com |g 40/6(2015-08-01), 1451-1456 |x 0942-8925 |q 40:6<1451 |1 2015 |2 40 |o 261 | |
| 856 | 4 | 0 | |u https://doi.org/10.1007/s00261-014-0331-6 |q text/html |z Onlinezugriff via DOI |
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| 900 | 7 | |a Metadata rights reserved |b Springer special CC-BY-NC licence |2 nationallicence | |
| 908 | |D 1 |a research-article |2 jats | ||
| 949 | |B NATIONALLICENCE |F NATIONALLICENCE |b NL-springer | ||
| 950 | |B NATIONALLICENCE |P 856 |E 40 |u https://doi.org/10.1007/s00261-014-0331-6 |q text/html |z Onlinezugriff via DOI | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Moreno |D Courtney |u Department of Radiology & Imaging Sciences, Emory University School of Medicine, 1364 Clifton Road, NE, 30322, Atlanta, GA, USA |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Mittal |D Pardeep |u Department of Radiology & Imaging Sciences, Emory University School of Medicine, 1364 Clifton Road, NE, 30322, Atlanta, GA, USA |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Henson |D Nicholas |u Department of Radiology & Imaging Sciences, Emory University School of Medicine, 1364 Clifton Road, NE, 30322, Atlanta, GA, USA |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Baumgarten |D Deborah |u Department of Radiology & Imaging Sciences, Emory University School of Medicine, 1364 Clifton Road, NE, 30322, Atlanta, GA, USA |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Alexander |D Lauren |u Department of Radiology & Imaging Sciences, Emory University School of Medicine, 1364 Clifton Road, NE, 30322, Atlanta, GA, USA |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Hanes |D Timothy |u Department of Radiology & Imaging Sciences, Emory University School of Medicine, 1364 Clifton Road, NE, 30322, Atlanta, GA, USA |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Small |D William |u Department of Radiology & Imaging Sciences, Emory University School of Medicine, 1364 Clifton Road, NE, 30322, Atlanta, GA, USA |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Kitajima |D Hiroumi |u Department of Radiology & Imaging Sciences, Emory University School of Medicine, 1364 Clifton Road, NE, 30322, Atlanta, GA, USA |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Kang |D Jian |u Department of Biostatistics and Bioinformatics, Department of Radiology & Imaging Sciences, Emory University School of Medicine, Atlanta, GA, USA |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Votaw |D John |u Department of Radiology & Imaging Sciences, Emory University School of Medicine, 1364 Clifton Road, NE, 30322, Atlanta, GA, USA |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Oshinski |D John |u Department of Radiology & Imaging Sciences, Emory University School of Medicine, 1364 Clifton Road, NE, 30322, Atlanta, GA, USA |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Dixon |D W. |u Department of Radiology & Imaging Sciences, Emory University School of Medicine, 1364 Clifton Road, NE, 30322, Atlanta, GA, USA |4 aut | ||
| 950 | |B NATIONALLICENCE |P 773 |E 0- |t Abdominal Imaging |d Springer US; http://www.springer-ny.com |g 40/6(2015-08-01), 1451-1456 |x 0942-8925 |q 40:6<1451 |1 2015 |2 40 |o 261 | ||