Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Thilaka S. Sumanaweera"'
Autor:
Patrick Maguire, Alice Jack, Georg Weidlich, Arjun D. Sharma, Douglas Wong, Thomas J. Fogarty, Thilaka S. Sumanaweera
Publikováno v:
Heart Rhythm. 7:802-810
Background A variety of catheter-based energy modalities are used for cardiac ablation to treat arrhythmias. Robotic radiosurgery is increasingly being utilized to successfully accomplish precise tissue ablation in anatomically remote areas. Objectiv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0fc749c53476c0652219f6639cd82a53
https://doi.org/10.1016/j.hrthm.2010.02.010
https://doi.org/10.1016/j.hrthm.2010.02.010
Publikováno v:
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control. 49:1029-1038
An approach for acquiring dimensionally accurate three-dimensional (3-D) ultrasound data from multiple 2-D image planes is presented. This is based on the use of a modified linear-phased array comprising a central imaging array that acquires multiple
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::baa680a599fce849c76dc40cd47d4732
https://doi.org/10.1109/tuffc.2002.1026015
https://doi.org/10.1109/tuffc.2002.1026015
Autor:
R. Brooke Jeffrey, Haobo Xu, David S. Paik, Barbra A. Ross, Sandy Napel, John A. Hossack, Thilaka S. Sumanaweera
Publikováno v:
Radiology. 222:560-563
Automatic analysis was performed of four-dimensional ultrasonographic (US) data in the carotid artery. The data, which were acquired in 31 subjects (eight healthy volunteers and 23 patients) by using a US scanner fitted with a special probe, were suc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7da84e387b60aad614bbc5876c00b881
https://doi.org/10.1148/radiol.2222010371
https://doi.org/10.1148/radiol.2222010371
Autor:
Chye Hwang Yan, Shin Y. Yen, Sandy Napel, Thilaka S. Sumanaweera, Robert T. Whalen, Gary S. Beaupre
Publikováno v:
Medical Physics. 25:121-128
This paper presents a new algorithm for frame registration. Our algorithm requires only that the frame be comprised of straight rods, as opposed to the N structures or an accurate frame model required by existing algorithms. The algorithm utilizes th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::422fa20d0eaa236ef8ea6184d61b5cee
https://doi.org/10.1118/1.598166
https://doi.org/10.1118/1.598166
Autor:
Paul F. Hemler, Petra A. van den Elsen, D. Martin, Sandy Napel, John Drace, Ramani Pichumani, Inder Perkash, Thilaka S. Sumanaweera, John R. Adler
Publikováno v:
Medical Physics. 22:1049-1056
This paper presents a new reference data set and associated quantification methodology to assess the accuracy of registration of computerized tomography (CT) and magnetic-resonance (MR) images. Also described is a new semiautomatic surface-based syst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a3103cedae26f2dce28d13d1ba8b3ef2
https://doi.org/10.1118/1.597591
https://doi.org/10.1118/1.597591
Autor:
Sandy Napel, John R. Adler, Paul F. Hemler, Gary H. Glover, David C. Martin, Thilaka S. Sumanaweera, Petra A. van den Elsen
Publikováno v:
Journal of Image Guided Surgery. 1:151-157
We previously described a technique for correcting patient-specific magnetic field inhomogeneity spatial distortion in magnetic resonance images (MRI), which was not applicable to patients fitted with MRI-compatible stereotactic fiducial frames. Here
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::47508df17d7848ef98c97e2d5da73546
https://doi.org/10.1002/(sici)1522-712x(1995)1:3<151::aid-igs4>3.0.co
https://doi.org/10.1002/(sici)1522-712x(1995)1:3<151::aid-igs4>3.0.co
Publikováno v:
Journal of Image Guided Surgery. 1:35-45
This paper presents a versatile system for registering and visualizing computed tomography and magnetic resonance images. The system utilizes a semi-automatic, surface-based registration strategy which has proven useful for registering a number of di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3a601e076d31a664b6f4a14100739975
https://doi.org/10.1002/(sici)1522-712x(1995)1:1<35::aid-igs6>3.0.co
https://doi.org/10.1002/(sici)1522-712x(1995)1:1<35::aid-igs6>3.0.co
Publikováno v:
Magnetic Resonance in Medicine. 31:40-47
We present a method to quantify the MR field inhomogeneity geometric distortion to subpixel accuracy without using objects of known dimensions and without using an external standard such as CT. Our method may be used to quantify the geometric accurac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d7ab70d4d289e640c89095ecac4cf5ad
https://doi.org/10.1002/mrm.1910310106
https://doi.org/10.1002/mrm.1910310106
Autor:
Alyson K. Iwamura, Edward A. Gardner, Patrick Maguire, James P. Steel, Thilaka S. Sumanaweera, Oliver Blanck, Sonja Dieterich
Publikováno v:
Journal of Applied Clinical Medical Physics
In vivo measurements were made of the dose delivered to animal models in an effort to develop a method for treating cardiac arrhythmia using radiation. This treatment would replace RF energy (currently used to create cardiac scar) with ionizing radia
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d41710662e1fe2e9bc6581414a00e20
https://pubmed.ncbi.nlm.nih.gov/22584173
https://pubmed.ncbi.nlm.nih.gov/22584173
Autor:
Luis F. Fajardo, Douglas Wong, Richard Marshall, Patrick Maguire, Arjun D. Sharma, Thomas J. Fogarty, Thilaka S. Sumanaweera
Publikováno v:
Circulation. 116
Introduction: High energy x-ray irradiation from a linear accelerator mounted on a robot arm has recently been used to produce ablation of cardiac tissue in swine. This device is currently used in patients for diverse indications requiring careful ta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d24b0e3bf78389bcb0c8168d3528d3d
https://doi.org/10.1161/circ.116.suppl_16.ii_489-c
https://doi.org/10.1161/circ.116.suppl_16.ii_489-c