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- Publisher Website: 10.1016/j.crad.2013.05.102
- Scopus: eid_2-s2.0-84885020386
- PMID: 23916551
- WOS: WOS:000331167100005
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Article: Image quality and radiation exposure in CT of the pancreas: 320-MDCT with and without adaptive iterative dose reduction versus 64-MDCT
Title | Image quality and radiation exposure in CT of the pancreas: 320-MDCT with and without adaptive iterative dose reduction versus 64-MDCT |
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Authors | |
Issue Date | 2013 |
Citation | Clinical Radiology, 2013, v. 68, n. 11 How to Cite? |
Abstract | Aim To compare the image quality and radiation exposure in computed tomography (CT) of the pancreas acquired using 320-multidetector (MD)CT versus 64-MDCT and to demonstrate the effects of adaptive iterative dose reduction (AIDR) on 320-MDCT. Materials and methods One hundred and fifty patients were randomized into three groups including 320-section volume imaging using AIDR (group A), 320-slice volume scan without AIDR (group B), and 64-section helical imaging without AIDR (group C). Transaxial arterial, pancreatic phase, and volume-rendered CT angiographic images were reconstructed. CT radiodensity of the abdominal aorta, pancreas, signal-to-noise ratios (SNR), dose-length products (DLPs; mGy cm), and image quality were measured. Results No significant difference in CT radiodensity of the abdominal aorta or pancreas was noted between groups. Mean DLPs were 600.9 ± 145.8, 681.6 ± 97.5, and 1231.5 ± 271.4 in groups A, B, and C, respectively. The DLP was reduced by 51% in group A and 45% in group B compared to group C (p < 0.001). SNRs of the pancreas during the pancreatic phase were comparable between groups A and C, but were significantly lower in group B (p < 0.001). Image quality, including the depiction of some small arterial branches on the arterial and CT angiographic images and the main pancreatic duct on the pancreatic-phase images, were significantly lower in group B than in groups A and C (p = 0.008-0.038). Conclusion Radiation dose can be markedly reduced for contrast-enhanced CT imaging of the pancreas without compromising image quality using a 320-MDCT with AIDR, compared with 64-section helical CT. © 2013 The Royal College of Radiologists. Published by Elsevier Ltd. All rights reserved. |
Persistent Identifier | http://hdl.handle.net/10722/316080 |
ISSN | 2023 Impact Factor: 2.1 2023 SCImago Journal Rankings: 0.603 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Goshima, S. | - |
dc.contributor.author | Kanematsu, M. | - |
dc.contributor.author | Nishibori, H. | - |
dc.contributor.author | Miyazawa, D. | - |
dc.contributor.author | Kondo, H. | - |
dc.contributor.author | Moriyama, N. | - |
dc.contributor.author | Bae, K. T. | - |
dc.date.accessioned | 2022-08-24T15:49:10Z | - |
dc.date.available | 2022-08-24T15:49:10Z | - |
dc.date.issued | 2013 | - |
dc.identifier.citation | Clinical Radiology, 2013, v. 68, n. 11 | - |
dc.identifier.issn | 0009-9260 | - |
dc.identifier.uri | http://hdl.handle.net/10722/316080 | - |
dc.description.abstract | Aim To compare the image quality and radiation exposure in computed tomography (CT) of the pancreas acquired using 320-multidetector (MD)CT versus 64-MDCT and to demonstrate the effects of adaptive iterative dose reduction (AIDR) on 320-MDCT. Materials and methods One hundred and fifty patients were randomized into three groups including 320-section volume imaging using AIDR (group A), 320-slice volume scan without AIDR (group B), and 64-section helical imaging without AIDR (group C). Transaxial arterial, pancreatic phase, and volume-rendered CT angiographic images were reconstructed. CT radiodensity of the abdominal aorta, pancreas, signal-to-noise ratios (SNR), dose-length products (DLPs; mGy cm), and image quality were measured. Results No significant difference in CT radiodensity of the abdominal aorta or pancreas was noted between groups. Mean DLPs were 600.9 ± 145.8, 681.6 ± 97.5, and 1231.5 ± 271.4 in groups A, B, and C, respectively. The DLP was reduced by 51% in group A and 45% in group B compared to group C (p < 0.001). SNRs of the pancreas during the pancreatic phase were comparable between groups A and C, but were significantly lower in group B (p < 0.001). Image quality, including the depiction of some small arterial branches on the arterial and CT angiographic images and the main pancreatic duct on the pancreatic-phase images, were significantly lower in group B than in groups A and C (p = 0.008-0.038). Conclusion Radiation dose can be markedly reduced for contrast-enhanced CT imaging of the pancreas without compromising image quality using a 320-MDCT with AIDR, compared with 64-section helical CT. © 2013 The Royal College of Radiologists. Published by Elsevier Ltd. All rights reserved. | - |
dc.language | eng | - |
dc.relation.ispartof | Clinical Radiology | - |
dc.title | Image quality and radiation exposure in CT of the pancreas: 320-MDCT with and without adaptive iterative dose reduction versus 64-MDCT | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1016/j.crad.2013.05.102 | - |
dc.identifier.pmid | 23916551 | - |
dc.identifier.scopus | eid_2-s2.0-84885020386 | - |
dc.identifier.volume | 68 | - |
dc.identifier.issue | 11 | - |
dc.identifier.eissn | 1365-229X | - |
dc.identifier.isi | WOS:000331167100005 | - |