Search

Your search keyword '"Slaughter, Richard E."' showing total 38 results
Start Over Author "Slaughter, Richard E."
38 results on '"Slaughter, Richard E."'

15. Screen-detected subsolid pulmonary nodules: long-term follow-up and application of the PanCan lung cancer risk prediction model

Author

Zhao, Henry, primary, Marshall, Henry M, additional, Yang, Ian A, additional, Bowman, Rayleen V, additional, Ayres, John, additional, Crossin, Jane, additional, Lau, Melanie, additional, Slaughter, Richard E, additional, Redmond, Stanley, additional, Passmore, Linda, additional, McCaul, Elizabeth, additional, Courtney, Deborah, additional, Leong, Steven C, additional, Windsor, Morgan, additional, Zimmerman, Paul V, additional, and Fong, Kwun M, additional

Published
2016
Full Text
View/download PDF

16. Lung cancer screening feasibility in Australia

Author

Marshall, Henry M., primary, Bowman, Rayleen V., additional, Ayres, John, additional, Crossin, Jane, additional, Lau, Melanie, additional, Slaughter, Richard E., additional, Redmond, Stanley, additional, Passmore, Linda, additional, McCaul, Elizabeth, additional, Courtney, Deborah, additional, Leong, Steven C., additional, Windsor, Morgan, additional, Zimmerman, Paul V., additional, Yang, Ian A., additional, and Fong, Kwun M., additional

Published
2015
Full Text
View/download PDF

17. Assessing Coronary Heart Disease in Multi-slice Spiral Computed Tomography Angiography Datasets using Post-process Segmentation and Direct Volume Rendering

Author

Mueller, Daniel, Slaughter, Richard E., Maeder, Anthony J., and O'Shea, Peter J.

Subjects
090303 Biomedical Instrumentation, 080106 Image Processing, 080103 Computer Graphics
Abstract

Introduction. Coronary heart disease is the primary cause of sudden death in Australia, and is predicted to become the single leading health problem for the world by 2020 [1]. This disease results from an accumulation of plaque (consisting of cholesterol, calcium, and other substances) on the interior surface of arteries supplying the heart. Multi-slice spiral computed tomography angiography (MS-CTA) is emerging as a non-invasive alternative to the current "gold-standard" -- catheter-based coronary angiography (CCA) [2]. To effectively employ MS-CTA as a diagnostic tool, cardiologists use a variety of post-processing software algorithms to measure the degree of artery blockage (known as stenosis). Currently a number of algorithms exist including: oblique sectioning, curved sectioning, thin-slab maximum intensity projection (MIP), and surface rendering [3]. Methods. Unfortunately the current algorithms are inherently limited for providing insight into the complex three dimensional nature of diseased coronary arteries. These limitations stem from the two dimensional nature of these methods and/or their inability to clearly distinguish the vessel lumen from calcification artefacts. This work proposes the combined use of vessel segmentation and direct volume rendering (DVR) as a post-processing technique for more easily assessing stenosis within MS-CTA datasets. We present an initial investigation into a tracking-based vessel segmentation algorithm, coupled with direct volume rendering for visualisation. Results. A number of synthetic datasets were generated for the purpose of developing and verifying the tracking-based segmentation algorithm. Visual inspection of initial results from these synthetic datasets demonstrates the usefulness and potential of the proposed method. Further, we discuss a number of issues and present preliminary results for applying the segmentation method to real MS-CTA datasets. Conclusions. An initial investigation was undertaken into the usefulness of assessing coronary heart disease by applying vessel segmentation and direct volume rendering. Preliminary results using both synthetic and real datasets were presented and discussed. This method shows potential for allowing cardiologists to more easily visualise the complex three dimensional nature of diseased arteries, as well as providing a means to assess the true vessel lumen in the presence of calcification artefacts.

Published
2006

34. Reconstitution of the latent T-lymphocyte response to Epstein-Barr virus is coincident with long-term recovery from posttransplant lymphoma after adoptive immunotherapy

Author

Sherritt, Martina A., primary, Bharadwaj, Mandvi, additional, Burrows, Jacqueline M., additional, Morrison, Leanne E., additional, Elliott, Suzanne L., additional, Davis, Joanne E., additional, Kear, Laurie M., additional, Slaughter, Richard E., additional, Bell, Scott C., additional, Galbraith, Andrew J., additional, Khanna, Rajiv, additional, and Moss, Denis J., additional

Published
2003
Full Text
View/download PDF

35. Modified RV Short Axis Series—A New Method for Cardiac MRI Measurement of Right Ventricular Volumes.

Author

Strugnell, Wendy E., Slaughter, Richard E., Riley, Robyn A., Trotter, Andrew J., and Bartlett, Harry

Subjects
*MEDICAL imaging systems, *MAGNETIC resonance imaging, *CROSS-sectional imaging, *RIGHT heart ventricle, *KINESIOLOGY, *HEART atrium, *HEART ventricles, *TRICUSPID valve, *DIASTOLE (Cardiac cycle), *HEART beat
Abstract

Purpose. The current standard image orientation employed in the MRI assessment of right ventricular volumes uses a series of short axis cine acquisitions located with respect to a horizontal long axis view with the first slice placed across the atrio-ventricular valve plane at end diastole. Inherent inaccuracies are encountered with the use of this image orientation due to difficulty in defining the tricuspid valve and the border between atrium and ventricle on the resultant images. Our experience indicates that because the tricuspid valve is usually not in-plane in the slice the atrio-ventricular margin is difficult to distinguish. This leads to inaccuracies in measurements at the base of the RV and miscalculation of the RV volume. The purpose of this study was to assess an alternative method of image orientation aimed at increasing the accuracy of RV volume measurements using current commercially available CMRI sequences. This technique, the modified RV short axis series, is oriented to the outflow tract of the right ventricle. Method. We undertook a prospective study of 50 post cardiac transplant patients. A series of LV short axis multi-slice cine acquisition FIESTA images was acquired using the current standard technique. From this data set, LV and RV stroke volumes were derived on an Advantage Windows workstation using planimetry of the endocardial and epicardial borders in end systole and end diastole. Our new technique involved obtaining a set of multi-slice cine acquisition FIESTA images in a plane perpendicular to a line from the centre of the pulmonary valve to the apex of the RV. Planimetry of the RV was then performed and a stroke volume calculated using the same method of analysis. RV stroke volumes obtained from both techniques were compared with LV stroke volumes. Three operators independently derived RV data sets. Results. On the images acquired with the new technique, the tricuspid valve was easier to define leading to more accurate and reproducible planimetry of ventricular borders. RV stroke volumes calculated from the new method showed better agreement with LV stroke volumes than with the current method. These results were consistent across the three operators. Conclusions. This new method improves visualisation of the tricuspid valve and makes analysis easier and less prone to operator error than the current standard technique for MRI assessment of RV volumes. [ABSTRACT FROM AUTHOR]

Published
2005
Full Text
View/download PDF

37. Subendocardial Late Gadolinium Enhancement in Two Patients with Anthracycline Cardiotoxicity Following Treatment for Ewing's Sarcoma.

Author

Perel, Robert D., Slaughter, Richard E., and Strugnell, Wendy E.

Subjects
*GADOLINIUM, *EWING'S sarcoma, *CARDIOTOXICITY, *ANTHRACYCLINES, *DRUG therapy, *THERAPEUTICS
Abstract

Cardiotoxicity is a well-known consequence of anthracycline chemotherapy. We report CMR findings not previously described in two patients with anthracycline cardiotoxicity following treatment for Ewing's sarcoma. Subendocardial enhancement on late gadolinium contrast-enhanced CMR was present in both cases, with histological correlation in one case. [ABSTRACT FROM AUTHOR]

Published
2006
Full Text
View/download PDF

38. MR findings in cardiac amyloidosis.

Author

vanden Driesen RI, Slaughter RE, and Strugnell WE

Subjects
Aged, Female, Humans, Male, Middle Aged, Retrospective Studies, Amyloidosis diagnosis, Cardiomyopathies diagnosis, Magnetic Resonance Imaging
Abstract

Objective: The objective of our study was to describe a combination of features on MRI specific to cardiac amyloidosis., Conclusion: Cardiac amyloidosis is a common cause of infiltrative heart disease. The combination of subtle widespread heterogeneous myocardial enhancement on delayed postcontrast inversion recovery T1-weighted images, which may initially be dismissed as a technical error, with ancillary features of restrictive cardiac disease is highly suggestive of cardiac amyloidosis.

Published
2006
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results