Cone-Beam CT with Flat-Panel-Detector Digital Angiography System: Early Experience in Abdominal Interventional Procedures

Hirota, Shun; Nakao, Norio; Yamamoto, Satoshi; Kobayashi, Kaoru; Maeda, Hiroaki; Ishikura, Reiichi; Miura, Koui; Saito, Kiyoshi; Ueda, Kazuhiko; Baba, Rika

doi:10.1007/s00270-005-0287-6

Cited by 124 publications

(77 citation statements)

References 10 publications

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“…three-dimensional (3D) cone-beam computed tomography (CBCt) angiography has been used in the past on a variety of interventional procedures including renal biopsies, transcatheter chemoembolization for hepatocellular carcinomas, implantation of intra-arterial port systems in liver metastases, and partial splenic embolization [1][2][3] . the utilization of CBCt in traditional balloon-occluded retrograde transvenous obliteration (BRtO) in a small number of patients has been also described [4,5] .…”

Section: Introductionmentioning

confidence: 99%

Usefulness of intra-procedural cone-beam computed tomography in modified balloon-occluded retrograde transvenous obliteration of gastric varices

Lee

Chapman

et al. 2016

WJR

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AIM:To evaluate whether intra-procedural conebeam computed tomography (CBCT) performed during modified balloon-occluded retrograde transvenous obliteration (mBRTO) can accurately determine technical success of complete variceal obliteration. METHODS:From June 2012 to December 2014, 15 patients who received CBCT during mBRTO for treatment of portal hypertensive gastric variceal bleeding were retrospectively evaluated. Three-dimensional (3D) CBCT images were performed and evaluated prior to the end of the procedure, and these were further analyzed and compared to the pre-procedure contrast-enhanced computed tomography to determine the technical success of mBRTO including: Complete occlusion/obliteration of: (1) gastrorenal shunt (GRS); (2) gastric varices; and (3) Core tip: This is a retrospective study to evaluate the feasibility, usefulness and efficacy of cone-beam computed tomography (CBCT) in modified balloonoccluded retrograde transvenous obliteration (mBRTO) procedures including coil-assisted retrograde transvenous obliteration and plug-assisted retrograde transvenous oblitearation. With an intra-procedural three-dimensional CBCT, the technical success of mBRTO was determined prior to the completion of the procedure in 100% of cases. With CBCT, a complete anatomy of gastric varices including gastrorenal shunt, gastric varices, collaterals, afferent and efferent vessels were identified easily. The CBCT may improve the technical and clinical success of mBRTO procedures and potentially reduce additional procedure time and cost.Lee EW, So N, Chapman R, McWilliams JP, Loh CT, Busuttil RW, Kee ST. Usefulness of intra-procedural cone-beam computed tomography in modified balloon-occluded retrograde transvenous obliteration of gastric varices.

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Section: Introductionmentioning

confidence: 99%

Usefulness of intra-procedural cone-beam computed tomography in modified balloon-occluded retrograde transvenous obliteration of gastric varices

Lee

Chapman

et al. 2016

WJR

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“…10,11 CBCT has also been used for vascular imaging with contrast injection. 12,13 In all these applications, however, the CBCT has imaged the anatomy of organs only, and high-resolution full-coverage functional imaging is still in its infancy stage and remains a challenge.…”

Section: Flat-panel Detector-based (Fpd-based) Cone Beam Ct (Cbct) Tementioning

confidence: 99%

Dynamic cone beam CT angiography of carotid and cerebral arteries using canine model

Cai

Zhao²,

Conover³

et al. 2012

Med. Phys.

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Purpose: This research is designed to develop and evaluate a flat-panel detector-based dynamic cone beam CT system for dynamic angiography imaging, which is able to provide both dynamic functional information and dynamic anatomic information from one multirevolution cone beam CT scan. Methods: A dynamic cone beam CT scan acquired projections over four revolutions within a time window of 40 s after contrast agent injection through a femoral vein to cover the entire wash-in and wash-out phases. A dynamic cone beam CT reconstruction algorithm was utilized and a novel recovery method was developed to correct the time-enhancement curve of contrast flow. From the same data set, both projection-based subtraction and reconstruction-based subtraction approaches were utilized and compared to remove the background tissues and visualize the 3D vascular structure to provide the dynamic anatomic information. Results: Through computer simulations, the new recovery algorithm for dynamic timeenhancement curves was optimized and showed excellent accuracy to recover the actual contrast flow. Canine model experiments also indicated that the recovered time-enhancement curves from dynamic cone beam CT imaging agreed well with that of an IV-digital subtraction angiography (DSA) study. The dynamic vascular structures reconstructed using both projection-based subtraction and reconstruction-based subtraction were almost identical as the differences between them were comparable to the background noise level. At the enhancement peak, all the major carotid and cerebral arteries and the Circle of Willis could be clearly observed. Conclusions: The proposed dynamic cone beam CT approach can accurately recover the actual contrast flow, and dynamic anatomic imaging can be obtained with high isotropic 3D resolution. This approach is promising for diagnosis and treatment planning of vascular diseases and strokes.

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“…For these lesions, CBCT has been applied in various interventional procedures and surgeries for hepatic tumor embolization, guidance for biopsy, and surgeries for spine and skull base (13)(14)(15)(16)(17)(18). …”

mentioning

confidence: 99%

Clinical Usefulness of C-Arm Cone-Beam CT in Percutaneous Drainage of Inaccessible Abscess

Choi

Woo

et al. 2015

J Korean Soc Radiol

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Cone-Beam CT with Flat-Panel-Detector Digital Angiography System: Early Experience in Abdominal Interventional Procedures

Cited by 124 publications

References 10 publications

Usefulness of intra-procedural cone-beam computed tomography in modified balloon-occluded retrograde transvenous obliteration of gastric varices

Usefulness of intra-procedural cone-beam computed tomography in modified balloon-occluded retrograde transvenous obliteration of gastric varices

Dynamic cone beam CT angiography of carotid and cerebral arteries using canine model

Clinical Usefulness of C-Arm Cone-Beam CT in Percutaneous Drainage of Inaccessible Abscess

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