SU-GG-T-454: Localization Accuracy of Cone-Beam CT Guided Radiosurgery as Investigated Utilizing a Geometric Phantom

2008 ◽  
Vol 35 (6Part16) ◽  
pp. 2829-2829
Author(s):  
Z Wang ◽  
Q Wu ◽  
Z Chang ◽  
J Kirkpatrick ◽  
F Yin
Keyword(s):  
Cone Beam Ct ◽  
Cone Beam ◽  
Ct Guided ◽  
Localization Accuracy

Passive breath gating equipment for cone beam CT-guided RapidArc gastric cancer treatments

2015 ◽  
Vol 114 (1) ◽  
pp. 104-108 ◽  
Author(s):  
Weigang Hu ◽  
Guichao Li ◽  
Jinsong Ye ◽  
Jiazhou Wang ◽  
Jiayuan Peng ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
Cancer Treatments ◽  
Ct Guided

scholarly journals Fluoroscopy and Cone-Beam CT–guided Fixation by Internal Cemented Screw for Pathologic Pelvic Fractures

Radiology ◽  
2019 ◽  
Vol 290 (2) ◽  
pp. 418-425 ◽  
Author(s):  
Charles Roux ◽  
Lambros Tselikas ◽  
Steven Yevich ◽  
Raphael Sandes Solha ◽  
Antoine Hakime ◽  
...  
Keyword(s):  
Cone Beam Ct ◽  
Pelvic Fractures ◽  
Cone Beam ◽  
Ct Guided

scholarly journals Feasibility of cone beam CT-guided library of plans strategy in pre-operative gastric cancer radiotherapy

2020 ◽  
Vol 149 ◽  
pp. 49-54
Author(s):  
Margot Bleeker ◽  
Karin Goudschaal ◽  
Arjan Bel ◽  
Jan-Jakob Sonke ◽  
Maarten C.C.M. Hulshof ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
Cancer Radiotherapy ◽  
Ct Guided

Hybrid Operating Room Cone-Beam CT-Guided PEG-Tube Placement in a Patient with Large Ventral Hernia

2019 ◽  
Vol 85 (7) ◽  
pp. 363-365
Author(s):  
Peter Drevets ◽  
Alyssa Ford ◽  
Stephanie Schampaert ◽  
Carsten Schroeder
Keyword(s):  
Ventral Hernia ◽  
Operating Room ◽  
Cone Beam Ct ◽  
Tube Placement ◽  
Cone Beam ◽  
Hybrid Operating Room ◽  
Ct Guided ◽  
Large Ventral Hernia ◽  
Peg Tube

Using the Hybrid Operating Room in Thoracic Surgery

2018 ◽  
Vol 13 (5) ◽  
pp. 372-377 ◽  
Author(s):  
Carsten Schroeder ◽  
Jane M. Chung ◽  
Andrew B. Mitchell ◽  
Thomas A. Dillard ◽  
Alessandro G. Radaelli ◽  
...  
Keyword(s):  
Thoracic Surgery ◽  
Ct Scan ◽  
Cone Beam Ct ◽  
Percutaneous Biopsy ◽  
Cost Effective ◽  
Cone Beam ◽  
Ct Guided ◽  
Operation Room ◽  
Hybrid Operation ◽  
Site Evaluation

We describe the integration of the hybrid operation room cone-beam computed tomography (CT) scan technology into the practice of general thoracic surgery. The combination of the following three techniques: (1) cone-beam CT scan augmented navigational bronchoscopy, (2) cone-beam CT-guided percutaneous biopsy and/or fiducial placement, and (3) fiducial or image-guided video-assisted thoracic surgery resection, into a single-stage, single-provider procedure allows for diagnosis and treatment in one setting. Rapid on-site evaluation of cytological or pathology specimens is key to this “all-in-one” approach. The time from diagnosis to curative treatment can significantly be reduced using the hybrid operation room technology, leading to decreased upstaging, increased survival and facilitating the otherwise difficult intraoperative detection and resection of small and deeper lesions. Not only does this benefit the overall thoracic healthcare of the community but also provides a cost-effective paradigm for the institution.

scholarly journals Cone-Beam-CT Guided Adaptive Radiotherapy for Locally Advanced Non-small Cell Lung Cancer Enables Quality Assurance and Superior Sparing of Healthy Lung

2020 ◽  
Vol 10 ◽  
Author(s):  
Philipp Hoegen ◽  
Clemens Lang ◽  
Sati Akbaba ◽  
Peter Häring ◽  
Mona Splinter ◽  
...  
Keyword(s):  
Advanced Nsclc ◽  
Cone Beam Ct ◽  
Locally Advanced ◽  
Cone Beam ◽  
Lung Dose ◽  
Ct Guided ◽  
Locally Advanced Nsclc ◽  
Plan Adaptation ◽  
Mean Lung Dose ◽  
Healthy Lung

PurposeTo evaluate the potential of cone-beam-CT (CB-CT) guided adaptive radiotherapy (ART) for locally advanced non-small cell lung cancer (NSCLC) for sparing of surrounding organs-at-risk (OAR).Materials and MethodsIn 10 patients with locally advanced NSCLC, daily CB-CT imaging was acquired during radio- (n = 4) or radiochemotherapy (n = 6) for simulation of ART. Patients were treated with conventionally fractionated intensity-modulated radiotherapy (IMRT) with total doses of 60–66 Gy (pPlan) (311 fraction CB-CTs). OAR were segmented on every daily CB-CT and the tumor volumes were modified weekly depending on tumor changes. Doses actually delivered were recalculated on daily images (dPlan), and voxel-wise dose accumulation was performed using a deformable registration algorithm. For simulation of ART, treatment plans were adapted using the new contours and re-optimized weekly (aPlan).ResultsCB-CT showed continuous tumor regression of 1.1 ± 0.4% per day, leading to a residual gross tumor volume (GTV) of 65.3 ± 13.4% after 6 weeks of radiotherapy (p = 0.005). Corresponding PTVs decreased to 83.7 ± 7.8% (p = 0.005). In the actually delivered plans (dPlan), both conformity (p = 0.005) and homogeneity (p = 0.059) indices were impaired compared to the initial plans (pPlan). This resulted in higher actual lung doses than planned: V20Gy was 34.6 ± 6.8% instead of 32.8 ± 4.9% (p = 0.066), mean lung dose was 19.0 ± 3.1 Gy instead of 17.9 ± 2.5 Gy (p = 0.013). The generalized equivalent uniform dose (gEUD) of the lung was 18.9 ± 3.1 Gy instead of 17.8 ± 2.5 Gy (p = 0.013), leading to an increased lung normal tissue complication probability (NTCP) of 15.2 ± 13.9% instead of 9.6 ± 7.3% (p = 0.017). Weekly plan adaptation enabled decreased lung V20Gy of 31.6 ± 6.2% (−3.0%, p = 0.007), decreased mean lung dose of 17.7 ± 2.9 Gy (−1.3 Gy, p = 0.005), and decreased lung gEUD of 17.6 ± 2.9 Gy (−1.3 Gy, p = 0.005). Thus, resulting lung NTCP was reduced to 10.0 ± 9.5% (−5.2%, p = 0.005). Target volume coverage represented by conformity and homogeneity indices could be improved by weekly plan adaptation (CI: p = 0.007, HI: p = 0.114) and reached levels of the initial plan (CI: p = 0.721, HI: p = 0.333).ConclusionIGRT with CB-CT detects continuous GTV and PTV changes. CB-CT-guided ART for locally advanced NSCLC is feasible and enables superior sparing of healthy lung at high levels of plan conformity.

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