Small-Bowel Obstruction: Coronal Reformations from Isotropic Voxels at 16-Section Multi–Detector Row CT

Jaffe, Tracy A.; Martin, Lucie C.; Thomas, John V.; Adamson, Andrew R.; DeLong, David M.; Paulson, Erik K.

doi:10.1148/radiol.2381050489

Cited by 75 publications

(22 citation statements)

References 33 publications

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“…However, only two studies (published by the same team) evaluated the added value of reformatting in acute abdomen cases, i.e. appendicitis and bowel obstruction [16,17]-so far no one has evaluated the role of thin slices and reformation in the diagnosis of bowel perforation, although Milki et al [18] reported one case of bowel perforation in which a comparison of 2-mmthick and 7-mm-thick axial slices was made. Our study was designed to determine the incremental diagnostic value of adding 1.25-mm slices and coronal and sagittal reformatting to 5-mm axial slices for identification of discontinuities in the GI wall, as a direct bowel perforation finding in patients with a pneumoperitoneum.…”

Section: Discussionmentioning

confidence: 99%

Direct visualization of perforation sites in patients with a non-traumatic free pneumoperitoneum: added diagnostic value of thin transverse slices and coronal and sagittal reformations for multi-detector CT

Ghekiere

Lesnik²,

Millet³

et al. 2007

Eur Radiol

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The incremental diagnostic value of adding 1.25-mm slices and coronal and sagittal reformatting to 5-mm axial reconstructions for direct visualization of the perforation site in patients with non-traumatic free pneumoperitoneum was assessed. Forty patients with non-traumatic bowel perforation and free pneumoperitoneum underwent computed tomography (CT). The perforation was gastroduodenal in 18 patients and involved the small or large bowel in 22 patients. Transverse scans were reconstructed with 5-mm thick sections at 5-mm intervals and 1.25-mm-thick sections at 1.25-mm intervals. The second data set was reformatted coronally and sagittaly with 3-mm-thick sections at 3-mm intervals. Three independent blinded readers interpreted 5-mm transverse scans, then combined 1.25-mm and 5-mm-transverse scans, and then combined transverse, coronal and sagittal scans. The rate of identification of the perforation site ranged from 43% to 53% with the combined axial, sagittal and coronal scans, from 28% to 48% with the 1.25- and 5-mm transverse scans, and from 5% to 20% only with the 5-mm thick transverse scans. The agreement between readers was significantly higher with thin slices and reformatting. The use of 1.25-mm axial slices and reformations intrinsically contained more useful diagnostic information than 5-mm axial slices alone for diagnosis of the perforation site in patients with pneumoperitoneum.

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Section: Discussionmentioning

confidence: 99%

Direct visualization of perforation sites in patients with a non-traumatic free pneumoperitoneum: added diagnostic value of thin transverse slices and coronal and sagittal reformations for multi-detector CT

Ghekiere

Lesnik²,

Millet³

et al. 2007

Eur Radiol

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“…Recent MDCT data using multiplanar reformations have not demonstrated significantly improved sensitivity and specificity for diagnosing SBO or its complications relative to evaluation of transverse images alone [7]. The use of coronal reformations has, however, been shown to increase confidence of the radiologist in the following areas: excluding SBO, diagnosing SBO, and demonstrating abnormal bowel wall enhancement [7].…”

Section: Sensitivity Of Ct In Small Bowel Obstruction and Related Finmentioning

confidence: 99%

“…The use of coronal reformations has, however, been shown to increase confidence of the radiologist in the following areas: excluding SBO, diagnosing SBO, and demonstrating abnormal bowel wall enhancement [7]. In addition, clinicians generally are appreciative of the more familiar anatomy demonstrated with multiplanar reformation and 3D sequences.…”

Section: Sensitivity Of Ct In Small Bowel Obstruction and Related Finmentioning

confidence: 99%

Multidetector Row CT of Small Bowel Obstruction

Qalbani¹,

Paushter²,

Dachman³

2007

Radiologic Clinics of North America

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“…26,27 Isotropic voxel has advantages in the quality of the reconstruction of geometric model. [28][29][30][31][32] For instance, the use of submillimeter isotropic datasets in heart, lungs and musculoskeletal imaging has proven to be beneficial. [33][34][35][36][37] Spiral CT scanner can provide isotropic data.…”

Section: Introductionmentioning

confidence: 99%

The influence of anisotropic voxel caused by field of view setting on the accuracy of three-dimensional reconstruction of bone geometric models

Liu

Fan

et al. 2018

AIP Advances

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ARTICLES YOU MAY BE INTERESTED INMillimeter wave (220 GHz-330 GHz) characterizations of carbon nanotube films AIP Advances 8, 085110 (2018) The finite element method is playing an increasingly important role in osteoporosis screening. An accurate bone geometric model, a prerequisite for the finite element analysis, is affected by voxels. Isotropic voxel has advantages in three-dimensional reconstruction, but field of view setting usually results in anisotropic voxels. The main goal of this study was to investigate the influence of anisotropic voxel on the accuracy of three-dimensional reconstruction of bone geometric models. Sixty metatarsal bones were scanned twice with an interval of 18 months with different fields of view. We reconstructed these metatarsals and compared them. The results showed that there was no significant difference in volume, surface, length, width and height and two principal moments of inertia, indicating that anisotropic voxel caused by field of view setting has a neglectable effect on the three-dimensional reconstruction of bone geometric models, and that using finite element method based on bone geometric model reconstructed by anisotropic voxel to predict bone strength is reliable.

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Small-Bowel Obstruction: Coronal Reformations from Isotropic Voxels at 16-Section Multi–Detector Row CT

Abstract: Transverse 16-section multi-detector row CT data sets are an excellent test for the diagnosis of SBO, while the addition of coronal reformations obtained from these isotropic data sets adds confidence to the diagnosis and exclusion of SBO.

Cited by 75 publications

References 33 publications

Direct visualization of perforation sites in patients with a non-traumatic free pneumoperitoneum: added diagnostic value of thin transverse slices and coronal and sagittal reformations for multi-detector CT

Direct visualization of perforation sites in patients with a non-traumatic free pneumoperitoneum: added diagnostic value of thin transverse slices and coronal and sagittal reformations for multi-detector CT

Multidetector Row CT of Small Bowel Obstruction

The influence of anisotropic voxel caused by field of view setting on the accuracy of three-dimensional reconstruction of bone geometric models

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