scholarly journals Experiences with a local, semi-automatic, three-dimensional liver reconstruction software for preoperative planning in a high volume liver center

HPB ◽  
2020 ◽  
Vol 22 ◽  
pp. S341
Author(s):  
F. Huettl ◽  
M. Paschold ◽  
W. Kneist ◽  
T. Huber ◽  
H. Lang
Keyword(s):  
Preoperative Planning ◽  
Three Dimensional ◽  
High Volume ◽  
Reconstruction Software

scholarly journals Interactive 3D Reconstruction of Pulmonary Anatomy for Preoperative Planning, Virtual Simulation, and Intraoperative Guiding in Video-Assisted Thoracoscopic Lung Surgery

2019 ◽  
Vol 14 (1) ◽  
pp. 17-26 ◽  
Author(s):  
Peyman Sardari Nia ◽  
Jules R. Olsthoorn ◽  
Samuel Heuts ◽  
Jos G. Maessen
Keyword(s):  
3D Reconstruction ◽  
Preoperative Planning ◽  
Three Dimensional ◽  
Lung Surgery ◽  
Anatomic Variations ◽  
Ct Reconstruction ◽  
3D Vision ◽  
Video Assisted ◽  
Reconstruction Software ◽  
Interactive 3D

Objectives Routine imaging modalities combined with state-of-the-art reconstruction software can substantially improve preoperative planning and simplify complex procedure by enhancing the surgeon’s knowledge of the patient’s specific anatomy. The aim of the current study was to demonstrate the feasibility of interactive three-dimensional (3D) computed tomography (CT) reconstructions for preoperative planning and intraoperative guiding in video-assisted thoracoscopic lung surgery (VATS) with 3D vision. Methods Twenty-five consecutive patients referred for an anatomic pulmonary resection by a single surgeon were included. Data were collected prospectively. All patients underwent a CT angiography in the diagnostic pathway prior to referral. 3D reconstruction of the pulmonary anatomy was obtained from CT scans with dedicated software. An interactive PDF file of the 3D reconstruction with virtual resection was created, in which all the pulmonary structures could be individually selected. Furthermore, the reconstructions were used for intraoperative guiding on double monitor during VATS with 3D vision. Results In total, 26 procedures were performed for 5 benign and 21 malignant conditions. Lobectomy and segmentectomy were performed in 20 (76.9 %) and 6 (23.1%) cases, respectively. In all patients, preoperative 3D reconstruction of pulmonary vessels corresponded with the intraoperative findings. Reconstructions revealed anatomic variations in 4 (15.4%) patients. No conversion to thoracotomy or in-hospital mortality occurred. Conclusions Preoperative planning with interactive 3D CT reconstruction is a useful method to enhance the surgeon’s knowledge of the patient’s specific anatomy and to reveal anatomic variations. Intraoperative 3D guiding in VATS with 3D vision is feasible and could contribute to the safety and accuracy of anatomic resection.

scholarly journals Immersive 3D virtual reality imaging in planning minimally invasive and complex adult cardiac surgery

2020 ◽  
Vol 1 (1) ◽  
pp. 62-70
Author(s):  
Amir H Sadeghi ◽  
Wouter Bakhuis ◽  
Frank Van Schaagen ◽  
Frans B S Oei ◽  
Jos A Bekkers ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Virtual Reality ◽  
Cardiac Surgery ◽  
Heart Surgery ◽  
Preoperative Planning ◽  
Operating Time ◽  
Three Dimensional ◽  
Cardiothoracic Surgery ◽  
Planning Tool ◽  
Computed Tomography Images

Abstract Aims Increased complexity in cardiac surgery over the last decades necessitates more precise preoperative planning to minimize operating time, to limit the risk of complications during surgery and to aim for the best possible patient outcome. Novel, more realistic, and more immersive techniques, such as three-dimensional (3D) virtual reality (VR) could potentially contribute to the preoperative planning phase. This study shows our initial experience on the implementation of immersive VR technology as a complementary research-based imaging tool for preoperative planning in cardiothoracic surgery. In addition, essentials to set up and implement a VR platform are described. Methods Six patients who underwent cardiac surgery at the Erasmus Medical Center, Rotterdam, The Netherlands, between March 2020 and August 2020, were included, based on request by the surgeon and availability of computed tomography images. After 3D VR rendering and 3D segmentation of specific structures, the reconstruction was analysed via a head mount display. All participating surgeons (n = 5) filled out a questionnaire to evaluate the use of VR as preoperative planning tool for surgery. Conclusion Our study demonstrates that immersive 3D VR visualization of anatomy might be beneficial as a supplementary preoperative planning tool for cardiothoracic surgery, and further research on this topic may be considered to implement this innovative tool in daily clinical practice. Lay summary Over the past decades, surgery on the heart and vessels is becoming more and more complex, necessitating more precise and accurate preoperative planning. Nowadays, operative planning is feasible on flat, two-dimensional computer screens, however, requiring a lot of spatial and three-dimensional (3D) thinking of the surgeon. Since immersive 3D virtual reality (VR) is an upcoming imaging technique with promising results in other fields of surgery, we aimed in this study to explore the additional value of this technique in heart surgery. Our surgeons planned six different heart operations by visualizing computed tomography scans with a dedicated VR headset, enabling them to visualize the patient’s anatomy in an immersive and 3D environment. The outcomes of this preliminary study are positive, with a much more reality-like simulation for the surgeon. In such, VR could potentially be beneficial as a preoperative planning tool for complex heart surgery.

Three Dimensional Imaging and Surgical Planning

1995 ◽  
Vol 112 (5) ◽  
pp. P169-P169
Author(s):  
Vincent N. Carrasco ◽  
Suresh K. Mukherji ◽  
Harold C. Pillsbury
Keyword(s):  
Mr Imaging ◽  
Image Fusion ◽  
Surgical Planning ◽  
Preoperative Planning ◽  
Three Dimensional ◽  
Educational Objectives ◽  
Three Dimensional Imaging ◽  
Multimodality Image ◽  
Multimodality Image Fusion

Educational objectives: To discuss the value of CT and MR imaging for preoperative surgical planning and to discuss computerized three-dimensional imaging, multimodality image fusion, and appreciate their role in surgical preoperative planning.

Repair of Anomalous Single Coronary Artery From the Pulmonary Artery (ASCAPA)

2021 ◽  
pp. 215013512110641
Author(s):  
Srujan Ganta ◽  
John Artrip ◽  
Eleanor L. Schuchardt ◽  
Wyman Lai ◽  
Justin Ryan ◽  
...  
Keyword(s):  
Coronary Artery ◽  
Pulmonary Artery ◽  
Preoperative Planning ◽  
Main Pulmonary Artery ◽  
Three Dimensional ◽  
Severe Heart Failure ◽  
Normal Function ◽  
Left Ventricular ◽  
Single Coronary Artery ◽  
Lv Dysfunction

We describe the management of an infant presenting with severe heart failure at 6 weeks of age found to have an anomalous single coronary artery originating from the main pulmonary artery (MPA). This patient was transferred to our hospital and ultimately had their coronary artery translocated to the ascending aorta successfully. Preoperative severe left ventricular (LV) dysfunction and moderate/severe mitral regurgitation (MR) improved to normal function and mild-to-moderate MR 6 weeks postrepair. Three-dimensional CT reconstructions proved valuable and allowed for accurate preoperative planning leading to successful coronary transfer.

Percutaneous Kidney Puncture with Three-dimensional Mixed-reality Hologram Guidance: From Preoperative Planning to Intraoperative Navigation

2021 ◽  
Author(s):  
Francesco Porpiglia ◽  
Enrico Checcucci ◽  
Daniele Amparore ◽  
Dario Peretti ◽  
Federico Piramide ◽  
...  
Keyword(s):  
Mixed Reality ◽  
Preoperative Planning ◽  
Three Dimensional ◽  
Intraoperative Navigation

scholarly journals Three-Dimensional Printing Models in the Preoperative Planning of Carpal Fractures and Academic Education

Hand ◽  
2016 ◽  
Vol 11 (1_suppl) ◽  
pp. 66S-66S
Author(s):  
María Lucía Barbieri Grezzi ◽  
Virginia Giachero Castaño ◽  
Oscar Jacobo Bastreri ◽  
Denisse Hartwig Rota ◽  
Gustavo Andrés Mantrana Sanchez
Keyword(s):  
Preoperative Planning ◽  
Three Dimensional ◽  
Academic Education ◽  
Three Dimensional Printing ◽  
Dimensional Printing

Clinical application of three-dimensional printing to the management of complex univentricular hearts with abnormal systemic or pulmonary venous drainage

2017 ◽  
Vol 27 (7) ◽  
pp. 1248-1256 ◽  
Author(s):  
Eimear McGovern ◽  
Eoin Kelleher ◽  
Aisling Snow ◽  
Kevin Walsh ◽  
Bassem Gadallah ◽  
...  
Keyword(s):  
Image Processing ◽  
Preoperative Planning ◽  
Surgical Repair ◽  
Group Discussion ◽  
Three Dimensional ◽  
Venous Drainage ◽  
Three Dimensional Printing ◽  
Congenital Cardiac Anomalies ◽  
Ct Data ◽  
Dimensional Printing

AbstractIn recent years, three-dimensional printing has demonstrated reliable reproducibility of several organs including hearts with complex congenital cardiac anomalies. This represents the next step in advanced image processing and can be used to plan surgical repair. In this study, we describe three children with complex univentricular hearts and abnormal systemic or pulmonary venous drainage, in whom three-dimensional printed models based on CT data assisted with preoperative planning. For two children, after group discussion and examination of the models, a decision was made not to proceed with surgery. We extend the current clinical experience with three-dimensional printed modelling and discuss the benefits of such models in the setting of managing complex surgical problems in children with univentricular circulation and abnormal systemic or pulmonary venous drainage.

Abstract 11808: Association Between Left Ventricular Properties in Patients With Hypertension and the Incidence of Paroxysmal Atrial Fibrillation: Three-Dimensional Speckle Tracking Echocardiographic Study

Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Masafumi Kawade ◽  
Masanori Kawasaki ◽  
Shingo Minatoguchi ◽  
Ryuhei Tanaka ◽  
Maya Ishiguro ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Three Dimensional ◽  
High Volume ◽  
Left Ventricular ◽  
Myocardial Stiffness ◽  
3 Dimensional ◽  
Concentric Hypertrophy ◽  
Pulmonary Capillary ◽  
Echocardiographic Study ◽  
Heat Failure

Background: Hypertension (HTN) is one of the major causes of atrial fibrillation (AF), since it is usually accompanied by left atrial (LA) remodeling due to pressure and/or volume (LAV) overload. We examined the relationship between ventricular (LV) geometry or LV properties in HTN and the incidence of paroxysmal AF (PAF) using novel, one-beat, automated, 3-dimensional speckle tacking echocardiography (3D-STE) with high volume rates. Methods: Patients with HTN (n=107, age 69±7) and controls (n=60, age 69±9) were prospectively enrolled. HTN patients were divided into 5 groups according to LV geometry and the presence of hypertensive heat failure (HHF) {normal geometry (n=25), concentric remodeling (n=20), concentric hypertrophy (LVH) (n=24), eccentric LVH (n=21) and HHF (n=17)}. Isovolumic relaxation time (IVRT) was measured by Doppler echo. We evaluated LV ejection fraction (EF), E/e’, pulmonary capillary wedge pressure (PCWP), Tau, LV diastolic stress, LV strain and LV myocardial stiffness in sinus rhythm. PCWP was estimated as 10.7- 12.4 x log (LA active emptying function / minimum LAV) as we reported. Tau was calculated as IVRT / (ln 0.9 x systolic blood pressure - ln PCWP). LV diastolic stress was calculated as LV radius at end diastole x PCWP / thickness. LV strain rate (SR) during IVR, as an index of relaxation, and LV strain were measured by the 3D-STE with volume rates of 50-80vps. LV myocardial stiffness was estimated as LV stress / LV strain. Results: LVEF was reduced only in HHF compared with controls (56±7 vs. 67±6%). Conclusion: LVEF in HHF was decreased but still remained within the normal range, whereas diastolic properties in eccentric LVH and HHF were reduced compared with control. The incidence of PAF significantly increased in eccentric LVH and HHF associated with the impairment of LV relaxation and stiffness and increased LV stress. This suggests that the target of treatment to reduce the incidence of PAF in HTN must be diastolic function.

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