Demonstration of a software package for the reconstruction of the dynamically changing structure of the human heart from cone beam X-ray projections

Altschuler, Martin D.; Censor, Yair; Eggermont, P. P. B.; Herman, Gabor T.; Kuo, Yu-Ming; Lewitt, R.M.; McKay, Matthew; Tụy, Hoàng; Udupa, Jayaram K.; Yau, Mann-may

doi:10.1007/bf02222468

Cited by 39 publications

(10 citation statements)

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“…However, computed tomography places a higher risk on the patient due to high doses of radiation, and the use of CT in patient management has increased the overall radiation burden [7]. Cone beam computed tomography (CBCT) was first described in 1980 and was first applied to dentomaxillofacial radiology in 1998 [8][9][10][11]. This technique has obvious advantages, including lower radiation exposure, while providing adequate image quality [12].…”

Section: Introductionmentioning

confidence: 98%

Correlation of cone beam computed tomography (CBCT) findings in the maxillary sinus with dental diagnoses: a retrospective cross-sectional study

et al. 2011

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This study was conducted to assess the coincidence of mucosal hyperplasia in the maxillary sinus and related clinical diagnoses of posterior maxillary teeth found in cone beam computed tomography (CBCT) scans. A total of 204 patients who underwent CBCT examinations between 2006 and 2008 were evaluated retrospectively. Clinical and CBCT findings were correlated using patient records. Absolute frequencies, odds ratios (OR), and 95% confidence intervals (95% CI) were calculated for statistical evaluations. There was a pronounced association between periodontitis and radiological signs of sinusitis. Basal mucosal wall thickening was more likely in patients with decayed and non-vital teeth compared to patients with sound teeth (OR = 5.2; 95% CI = 1.2-23.1). Basal mucosal wall thickening was also more likely than total mucosal thickening (OR = 10.4; 95% CI = 2.6-42.2). Patients with decayed and endodontically treated teeth were more likely to exhibit involvement of the basal wall (OR = 9.2; 95% CI = 3.3-25.2) than were patients with healthy teeth. CBCT examinations revealed a correlation between basal mucosal thickening in the maxillary sinus and decayed posterior maxillary teeth or periodontitis. Chronic symptoms involving the sinuses are one of the most common reasons for patients to consult physicians. One reason for chronic orofacial pain is the prevalence of undiagnosed sinus conditions.

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Section: Introductionmentioning

confidence: 98%

Correlation of cone beam computed tomography (CBCT) findings in the maxillary sinus with dental diagnoses: a retrospective cross-sectional study

et al. 2011

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“…Our work on the surface rendering method of visualization dates back to the early days of CT and MR imaging [1,[43][44][45]. We have devised digital surface rendering algorithms [46] that run on PCs 16-31 times faster than methods based on rendering triangulated surfaces by using hardware rendering engines [47] and take about an order of magnitude less storage space.…”

Section: Methodsmentioning

confidence: 99%

CAVASS: a computer assisted visualization and analysis software system - visualization aspects

Grevera

Udupa

Odhner

et al. 2007

Medical Imaging 2007: Visualization and Image-Guided Procedures

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The Medical Image Processing Group (MIPG) at the University of Pennsylvania has been developing and distributing medical image analysis and visualization software systems for a long period of time. Our most recent system, 3DVIEWNIX, was first released in 1993. Since that time, a number of significant advancements have taken place with regard to computer platforms and operating systems, networking capability, the rise of parallel processing standards, and the development of open source toolkits. The development of CAVASS by our group is the next generation of 3DVIEWNIX. CAVASS will be freely available, open source, and is integrated with toolkits such as ITK and VTK. CAVASS runs on Windows, Unix, and Linux but shares a single code base. Rather than requiring expensive multiprocessor systems, it seamlessly provides for parallel processing via inexpensive COWs (Cluster of Workstations) for more time consuming algorithms. Most importantly, CAVASS is directed at the visualization, processing, and analysis of medical imagery, so support for 3D and higher dimensional medical image data and the efficient implementation of algorithms is given paramount importance. This paper focuses on aspects of visualization. All of the most of the popular modes of visualization including various 2D slice modes, reslicing, MIP, surface rendering, volume rendering, and animation are incorporated into CAVASS.

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“…Although several investigators are working on development of true cone beam algorithms [29,30], no analytic closed-form algorithm has yet been theoretically derived for reconstruction using a conical X-ray beam. However, another approach is possible; the conical beam may be approximated by a "stack" of fan beams in the axial direction.…”

Section: Methodsmentioning

confidence: 99%

The Dynamic Spatial Reconstructor: An X-Ray Video-Fluoroscopic CT Scanner for Dynamic Volume Imaging of Moving Organs

Robb¹

1982

IEEE Trans. Med. Imaging

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The trend in development of X-ray computed tomography systems over the past decade has been toward faster and faster scanners, with comcomitant improvement in image quality. The preliminary results from the DSR scanner suggest the advent of two new, powerful dimensions in X-ray computed tomography high temporal resolution and synchronous volume scanning. That is, true stop-action, full three-dimensional imaging at a high repetition rate is possible with CT scanners. Such capabilities promise to make possible new basic investigative and clinical studies of the structural-to-functional relationships of moving organ systems like the heart and lungs, and of the circulation in any organ of the body. Current state-of-the-art CT technology holds promise of exciting new clinical and research capabilities, such as quantitative analysis of regional blood flow and perfusion, simultaneous measurement of physiologic function and anatomic structure, and differential diagnosis of disease based on determination of tissue composition in any organ or region of the body, with a sensitivity and specificity not possible before.

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Demonstration of a software package for the reconstruction of the dynamically changing structure of the human heart from cone beam X-ray projections

Cited by 39 publications

References 10 publications

Correlation of cone beam computed tomography (CBCT) findings in the maxillary sinus with dental diagnoses: a retrospective cross-sectional study

Correlation of cone beam computed tomography (CBCT) findings in the maxillary sinus with dental diagnoses: a retrospective cross-sectional study

CAVASS: a computer assisted visualization and analysis software system - visualization aspects

The Dynamic Spatial Reconstructor: An X-Ray Video-Fluoroscopic CT Scanner for Dynamic Volume Imaging of Moving Organs

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