Computer-assisted virtual preoperative planning in orthopedic surgery for acetabular fractures based on actual computed tomography data

Wang, Guangye; Huang, Wenjun; Song, Qi; Qin, Yun-Tian; Jin-feng, Liang

doi:10.1080/24699322.2016.1240235

Cited by 25 publications

(18 citation statements)

References 25 publications

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“…CAS системы предназначены для повышения эффективности работы хирурга и минимизации хирургического вмешательства [7]. Это достигается путем решения следующих задач:…”

Section: Cas технологииunclassified

Application of computer-aided design systems and additive technologies in reconstructive surgery

Внук¹,

Vnuk²,

Ипполитов³

et al. 2019

GraphiCon'2019 Proceedings. Volume 1

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This work summarizes the experience of using modern methods of radiation diagnostics in combination with computer and telecommunication technologies in planning reconstructive operations in neurosurgical and maxillofacial practice. Modern medicine does not stand still, it is constantly developing and improving. Thanks to the emergence of high-tech medicine today, it is possible to carry out complex surgical operations and to give a person who has faced serious injury, to continue a fairly high-quality and full life. The creation of a digital model and the use of computer simulation using the data of a particular patient, was a real breakthrough in medicine, because this technology is very quickly found its practical use in many areas of surgery. To date, this approach in the planning of reconstructive surgery has already been tested in many medical institutions and makes a significant contribution to the development of modern medicine.

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Section: Cas технологииunclassified

Application of computer-aided design systems and additive technologies in reconstructive surgery

Внук¹,

Vnuk²,

Ипполитов³

et al. 2019

GraphiCon'2019 Proceedings. Volume 1

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“…In order to overcome the shortcomings of 2D imaging techniques for pre-operative planning, 3D surgical planning has been applied in areas such as craniomaxillofacial surgery [ 22 ], orthopedic surgery [ 23 ], liver cryotherapy [ 24 ], and radiofrequency ablation [ 25 – 28 ]. However, with respect to prostate cancer cryoablation, at the time of this study development, commercial software relies upon 2D images and was developed for whole gland ablation, and no commercial tools are available to guide treatment for cPGA in 3D.…”

Section: Introductionmentioning

confidence: 99%

MRI guided procedure planning and 3D simulation for partial gland cryoablation of the prostate: a pilot study

et al. 2020

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Purpose This study reports on the development of a novel 3D procedure planning technique to provide pre-ablation treatment planning for partial gland prostate cryoablation (cPGA). Methods Twenty men scheduled for partial gland cryoablation (cPGA) underwent pre-operative image segmentation and 3D modeling of the prostatic capsule, index lesion, urethra, rectum, and neurovascular bundles based upon multi-parametric MRI data. Pre-treatment 3D planning models were designed including virtual 3D cryotherapy probes to predict and plan cryotherapy probe configuration needed to achieve confluent treatment volume. Treatment efficacy was measured with 6 month post-operative MRI, serum prostate specific antigen (PSA) at 3 and 6 months, and treatment zone biopsy results at 6 months. Outcomes from 3D planning were compared to outcomes from a series of 20 patients undergoing cPGA using traditional 2D planning techniques. Results Forty men underwent cPGA. The median age of the cohort undergoing 3D treatment planning was 64.8 years with a median pretreatment PSA of 6.97 ng/mL. The Gleason grade group (GGG) of treated index lesions in this cohort included 1 (5%) GGG1, 11 (55%) GGG2, 7 (35%) GGG3, and 1 (5%) GGG4. Two (10%) of these treatments were post-radiation salvage therapies. The 2D treatment cohort included 20 men with a median age of 68.5 yrs., median pretreatment PSA of 6.76 ng/mL. The Gleason grade group (GGG) of treated index lesions in this cohort included 3 (15%) GGG1, 8 (40%) GGG2, 8 (40%) GGG3, 1 (5%) GGG4. Two (10%) of these treatments were post-radiation salvage therapies. 3D planning predicted the same number of cryoprobes for each group, however a greater number of cryoprobes was used in the procedure for the prospective 3D group as compared to that with 2D planning (4.10 ± 1.37 and 3.25 ± 0.44 respectively, p = 0.01). At 6 months post cPGA, the median PSA was 1.68 ng/mL and 2.38 ng/mL in the 3D and 2D cohorts respectively, with a larger decrease noted in the 3D cohort (75.9% reduction noted in 3D cohort and 64.8% reduction 2D cohort, p 0.48). In-field disease detection was 1/14 (7.1%) on surveillance biopsy in the 3D cohort and 3/14 (21.4%) in the 2D cohort, p = 0.056) In the 3D cohort, 6 month biopsy was not performed in 4 patients (20%) due to undetectable PSA, negative MRI, and negative MRI Axumin PET. For the group with traditional 2D planning, treatment zone biopsy was positive in 3/14 (21.4%) of the patients, p = 0.056. Conclusions 3D prostate cancer models derived from mpMRI data provide novel guidance for planning confluent treatment volumes for cPGA and predicted a greater number of treatment probes than traditional 2D planning methods. This study prompts further investigation into the use of 3D treatment planning techniques as the increase of partial gland ablation treatment protocols develop.

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“…In order to overcome the shortcomings of 2D imaging techniques for pre-operative planning, 3D surgical planning has been applied in areas such as radiofrequency ablation [18][19][20][21], liver cryotherapy [22], craniomaxillofacial surgery [23], and orthopedic surgery [24]. However, with respect to prostate cancer cryoablation, commercial software relies upon 2D images and was developed for whole gland ablation, and no commercial tools are available to guide treatment for cPGA in 3D.…”

Section: Introductionmentioning

confidence: 99%

MRI Guided Procedure Planning and 3D Simulation for Partial Gland Cryoablation of the Prostate: A Pilot Study

Wake

Rosenkrantz

Sodickson

et al. 2020

Preprint

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Purpose: This study reports on the development of a novel 3D procedure planning technique to provide pre-ablation treatment planning for partial gland prostate cryoablation (cPGA).Methods: Consecutive patients with magnetic resonance imaging (MRI)-visible (PI-RADS v2 score ³ 3) and biopsy confirmed prostate cancer undergoing partial gland cryoablation (cPGA) (n=20) were prospectively enrolled in an IRB approved study investigating advanced methods of data visualization for treatment planning. All patients enrolled in the study underwent image segmentation of the prostatic capsule, index lesion, urethra, rectum, and neurovascular bundles based upon multi-parametric MRI data. Segmented imaging data were viewed in 3D file format in computer-aided design (CAD) software, and virtual cryotherapy probes with -40°C isotherm volumes were created. Pre-treatment 3D prostate cancer models derived from MRI data were utilized to predict the number of and placement of cryotherapy probes to achieve confluent treatment volume. Treatment efficacy was measured with 6 month post-operative MRI, serum prostate specific antigen (PSA) at 3 and 6 months, and treatment zone biopsy results at 6 months were evaluated. Outcomes from 3D planning were compared to outcomes from a series of 20 patients undergoing cPGA using traditional 2D planning techniques.Results: The number of cryotherapy probes utilized matched the 3D plan in 16/20 (80%) of patients. 3D planning predicted a greater number of cryoprobes than 2D planning. Treatment zone biopsy was performed in 13/17 patients in the 3D cohort and was negative in 12 of these (92.9%). For the 3D group, 6 month biopsy was not performed in 4 (20%) due to undetectable PSA, negative MRI, and negative MRI Axumin PET. For the group with traditional 2D planning, treatment zone biopsy was positive in 3/14 (21.4%) of the patients, p = 0.056). Conclusions: 3D prostate cancer models derived from mpMRI data provide novel guidance for planning confluent treatment volumes for cPGA. This study prompts further investigation into the use of 3D treatment planning techniques.

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Computer-assisted virtual preoperative planning in orthopedic surgery for acetabular fractures based on actual computed tomography data

Cited by 25 publications

References 25 publications

Application of computer-aided design systems and additive technologies in reconstructive surgery

Application of computer-aided design systems and additive technologies in reconstructive surgery

MRI guided procedure planning and 3D simulation for partial gland cryoablation of the prostate: a pilot study

MRI Guided Procedure Planning and 3D Simulation for Partial Gland Cryoablation of the Prostate: A Pilot Study

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