Generation of multiple angels curved planar reformation

2016 ◽  
Author(s):  
Yue Du ◽  
Shuai Li ◽  
Qian Du
Keyword(s):  
Curved Planar Reformation

scholarly journals Intelligent Algorithms-Based CT Image Segmentation in Patients with Cardiovascular Diseases and Realization of Visualization Algorithms

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Xianhua Huang
Keyword(s):  
Cardiovascular Diseases ◽  
Blood Vessel ◽  
Ct Images ◽  
Ct Image ◽  
Segmentation Method ◽  
Intelligent Algorithms ◽  
Curved Planar Reformation ◽  
Cylinder Model ◽  
Visualization Algorithms ◽  
Coronary Artery Tree

The study focused on the intelligent algorithms-based segmentation of computed tomography (CT) images of patients with cardiovascular diseases (CVD) and the realization of visualization algorithms. The first step was to design a method for precise segmentation under the cylinder model based on the coronary body data of the coarse segmentation, and then the principles of different visualization algorithms were discussed. The results showed that the precise segmentation method can effectively eliminate most of the branches and calcified lesions; curved planar reformation (CPR) and straightened CPR can display the entire blood vessel on one image; and spherical CPR can display the complete coronary artery tree on an image, so that a problem with a certain blood vessel can be quickly found. In conclusion, the precise segmentation of CT images of CVD and visualization algorithm based on the cylinder model have clinical significance in the diagnosis of CVD.

The Use of Closure Devices for Aortic Stent-Graft Insertion: Outcomes Following a Paradigm Shift to Percutaneous Access in a Tertiary Vascular Center

2019 ◽  
Vol 53 (7) ◽  
pp. 536-540 ◽  
Author(s):  
Alan D. White ◽  
Can Hazar ◽  
David Jarosz ◽  
Paul Walker ◽  
David Shaw ◽  
...  
Keyword(s):  
Success Rate ◽  
Stent Graft ◽  
Case Series ◽  
High Success Rate ◽  
Complication Rates ◽  
Surgical Closure ◽  
Aortic Stent Graft ◽  
Curved Planar Reformation ◽  
Graft Insertion

Background: This retrospective case series aims to evaluate the efficacy of the Perclose ProGlide system for postoperative hemostasis following aortic stent-graft insertion. Material and Methods: A prospectively maintained database of patients with a minimum follow-up of 12 months following percutaneous aortic procedures was interrogated. Preprocedural computed tomography (CT) scans were reviewed to assess existing stenosis in the common femoral artery (CFA). Arteries with an estimated stenosis of greater than 25% on visual inspection underwent quantification using multiplanar and curved planar reformation. The preoperative and 1-year follow-up CTs of these patients were assessed for change in stenosis. Analysis was performed by 2 independent reviewers, with senior authors reviewing any discrepancies. Results: One hundred forty-two endovascular aortic aneurysm repairs (EVARs) were performed. The ProGlide system was used in 235 arteries, yielding a high success rate in obtaining postprocedural hemostasis (94%). There were 13 postprocedural access-related complications, including 5 patients requiring surgical closure due to inadequate seal. Two patients required thrombectomy due to distal embolization. One patient required CFA endarterectomy at 6 months for the treatment of preexisting short distance claudication. Vessel analysis was performed in 31 arteries. Mean preoperative stenosis was 32% (range: 20%-57%). Mean postoperative stenosis was 32% (21%-57%). No significant change in degree of stenosis was detected (defined as a 5% change). Conclusions: The ProGlide system yielded a high success rate in obtaining postoperative hemostasis with low rate of conversion to surgical closure and low complication rates. There was no evidence of worsening vessel stenosis in arteries with preprocedural stenotic disease. Level of Evidence: Level 4, Case Series.

Bending the Curve: Preoperative Determination of Bypass Graft Length and Trajectory With Curved Planar Reformatted Computed Tomography Angiography: Technical Note

2011 ◽  
Vol 70 (suppl_2) ◽  
pp. onsE327-onsE331
Author(s):  
Jeffrey C. Markham ◽  
Christopher S. Eddleman ◽  
David Uhrbrock ◽  
Babu G. Welch
Keyword(s):  
Computed Tomography ◽  
Bypass Graft ◽  
External Carotid Artery ◽  
Technical Note ◽  
Cerebral Revascularization ◽  
External Carotid ◽  
Efficient Manner ◽  
Curved Planar Reformation ◽  
Graft Length

ABSTRACT BACKGROUND AND IMPORTANCE: Cerebral revascularization continues to be an important technique for the treatment of cerebrovascular and vaso-occlusive diseases, and determination of appropriate graft sources and recipients is paramount to the success of the procedure. A tension-free anastomosis requires that harvested grafts be of an appropriate length to avoid complications. Volume-rendered contrast-enhanced computed tomography data sets may be useful in determining the desired length and path of the bypass graft and in the evaluation of appropriate recipient vessels. Curved planar reformation techniques may allow these properties to be determined in a novel, inexpensive, and efficient manner. CLINICAL PRESENTATION: A 63-year-old patient with a left hemispheric perfusion deficit and without an external carotid artery was in need of high-flow cerebral revascularization. A radial artery graft spanning from the vertebral artery to the middle cerebral artery was proposed. Preoperative determination of graft length necessary and most efficient subcutaneous placement was desired. A standard computed tomography angiogram of the head and neck was obtained and imported into a computer workstation with curved planar reformatting capabilities. CONCLUSION: Curved planar reformation technique can be used for preoperative planning of cerebral bypass procedures and is a novel, inexpensive, and efficient means of determining the desired length and path of the bypass graft and in the evaluation of appropriate recipient vessels.

CPR - curved planar reformation

2003 ◽  
Author(s):  
A. Kanitsar ◽  
D. Fleischmann ◽  
R. Wegenkittl ◽  
P. Felkel ◽  
E. Groller
Keyword(s):  
Curved Planar Reformation

Multipath Curved Planar Reformation of the Peripheral Arterial Tree in CT Angiography

Radiology ◽  
2007 ◽  
Vol 244 (1) ◽  
pp. 281-290 ◽  
Author(s):  
Justus E. Roos ◽  
Dominik Fleischmann ◽  
Arnold Koechl ◽  
Tejas Rakshe ◽  
Matus Straka ◽  
...  
Keyword(s):  
Ct Angiography ◽  
Arterial Tree ◽  
Curved Planar Reformation ◽  
Peripheral Arterial

Curved Planar Reformation for the Evaluation of Hydromyelia in Patients With Scoliosis Associated With Spinal Dysraphism

Spine ◽  
2018 ◽  
Vol 43 (3) ◽  
pp. E177-E184
Author(s):  
Fumitaka Yoshioka ◽  
Shoko Shimokawa ◽  
Motofumi Koguchi ◽  
Hiroshi Ito ◽  
Atsushi Ogata ◽  
...  
Keyword(s):  
Spinal Dysraphism ◽  
Curved Planar Reformation

Automated curved planar reformation of 3D spine images

2005 ◽  
Vol 50 (19) ◽  
pp. 4527-4540 ◽  
Author(s):  
Tomaž Vrtovec ◽  
Boštjan Likar ◽  
Franjo Pernuš
Keyword(s):  
Curved Planar Reformation
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