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Xiang D, Qi J, Wen Y, Zhao H, Zhang X, Qin J, Ma X, Ren Y, Hu H, Liu W, Yang F, Zhao H, Wang X, Zheng C. ADSeg: A flap-attention-based deep learning approach for aortic dissection segmentation. PATTERNS (NEW YORK, N.Y.) 2023; 4:100727. [PMID: 37223272 PMCID: PMC10201300 DOI: 10.1016/j.patter.2023.100727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 01/16/2023] [Accepted: 03/14/2023] [Indexed: 05/25/2023]
Abstract
Accurate and rapid segmentation of the lumen in an aortic dissection (AD) is an important prerequisite for risk evaluation and medical planning for patients with this serious condition. Although some recent studies have pioneered technical advances for the challenging AD segmentation task, they generally neglect the intimal flap structure that separates the true and false lumens. Identification and segmentation of the intimal flap may simplify AD segmentation, and the incorporation of long-distance z axis information interaction along the curved aorta may improve segmentation accuracy. This study proposes a flap attention module that focuses on key flap voxels and performs operations with long-distance attention. In addition, a pragmatic cascaded network structure with feature reuse and a two-step training strategy are presented to fully exploit network representation power. The proposed ADSeg method was evaluated on a multicenter dataset of 108 cases, with or without thrombus; ADSeg outperformed previous state-of-the-art methods by a significant margin and was robust against center variation.
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Affiliation(s)
- Dongqiao Xiang
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, Wuhan 430022, China
| | - Jiyang Qi
- School of Electronic Information and Communications, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Yiqing Wen
- School of Electronic Information and Communications, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Hui Zhao
- Department of Interventional Radiology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Xiaolin Zhang
- Department of Radiology, Yichang Central People’s Hospital, Yichang 443003, China
| | - Jia Qin
- Department of Radiology, Yichang Central People’s Hospital, Yichang 443003, China
| | - Xiaomeng Ma
- Department of Radiology, Jingzhou First People’s Hospital of Hubei province, Jingzhou 434000, China
| | - Yaguang Ren
- Research Laboratory for Biomedical Optics and Molecular Imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Hongyao Hu
- Department of Interventional Radiology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Wenyu Liu
- School of Electronic Information and Communications, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Fan Yang
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, Wuhan 430022, China
| | - Huangxuan Zhao
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, Wuhan 430022, China
| | - Xinggang Wang
- School of Electronic Information and Communications, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Chuansheng Zheng
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, Wuhan 430022, China
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Gaudry M, Guivier-Curien C, Blanchard A, Porto A, Bal L, Omnes V, De Masi M, Lu C, Jacquier A, Piquet P, Deplano V. Volume Analysis to Predict the Long-Term Evolution of Residual Aortic Dissection after Type A Repair. J Cardiovasc Dev Dis 2022; 9:jcdd9100349. [PMID: 36286301 PMCID: PMC9604488 DOI: 10.3390/jcdd9100349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 09/26/2022] [Accepted: 10/08/2022] [Indexed: 11/05/2022] Open
Abstract
Background: The aim of this study was to evaluate the aortic diameter and volume during the first year after a type A repair to predict the long-term prognosis of a residual aortic dissection (RAD). Methods: All patients treated in our center for an acute type A dissection with a RAD and follow-up > 3 years were included. We defined two groups: group 1 with dissection-related events (defined as an aneurysmal evolution, distal reintervention, or aortic-related death) and group 2 without dissection-related events. The aortic diameters and volume analysis were evaluated on three postoperative CT scans: pre-discharge (T1), 3−6 months (T2) and 1 year (T3). Results: Between 2009 and 2016, 54 patients were included. Following a mean follow-up of 75.4 months (SD 31.5), the rate of dissection-related events was 62.9% (34/54). The total aortic diameters of the descending thoracic aorta were greater in group 1 at T1, T2 and T3, with greater diameters in the FL (p < 0.01). The aortic diameter evolution at 3 months was not predictive of long-term dissection-related events. The total thoracic aortic volume was significantly greater in group 1 at T1 (p < 0.01), T2 (p < 0.01), and T3 (p < 0.01). At 3 months, the increase in the FL volume was significantly greater in group 1 (p < 0.01) and was predictive for long-term dissection-related events. Conclusion: This study shows that an initial CT scan volume analysis coupled with another at 3 months is predictive for the long-term evolution in a RAD. Based on this finding, more aggressive treatment could be given at an earlier stage.
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Affiliation(s)
- Marine Gaudry
- Timone Aortic Center, Department of Vascular Surgery, APHM, Timone Hospital, 13005 Marseille, France
- Correspondence: ; Tel.: +33-491-388-120
| | | | - Arnaud Blanchard
- Timone Aortic Center, Department of Vascular Surgery, APHM, Timone Hospital, 13005 Marseille, France
| | - Alizée Porto
- Timone Aortic Center, Department of Vascular Surgery, APHM, Timone Hospital, 13005 Marseille, France
- Department of Cardiac Surgery, APHM, Timone Hospital, 13005 Marseille, France
| | - Laurence Bal
- Timone Aortic Center, Department of Vascular Surgery, APHM, Timone Hospital, 13005 Marseille, France
| | - Virgile Omnes
- Timone Aortic Center, Department of Vascular Surgery, APHM, Timone Hospital, 13005 Marseille, France
| | - Mariangela De Masi
- Timone Aortic Center, Department of Vascular Surgery, APHM, Timone Hospital, 13005 Marseille, France
| | - Charlotte Lu
- Department of Radiology, APHM, Timone Hospital, 13005 Marseille, France
| | - Alexis Jacquier
- Department of Radiology, APHM, Timone Hospital, 13005 Marseille, France
| | - Philippe Piquet
- Timone Aortic Center, Department of Vascular Surgery, APHM, Timone Hospital, 13005 Marseille, France
| | - Valerie Deplano
- CNRS, Centrale Marseille, IRPHE, Aix Marseille University, 13013 Marseille, France
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Kimura N, Nakamura M, Takagi R, Mieno MN, Yamaguchi A, Czerny M, Beyersdorf F, Kari FA, Rylski B. False lumen/true lumen wall pressure ratio is increased in acute non-A non-B aortic dissection. Interact Cardiovasc Thorac Surg 2022; 35:6585342. [PMID: 35552699 PMCID: PMC9486891 DOI: 10.1093/icvts/ivac138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 05/06/2022] [Accepted: 05/09/2022] [Indexed: 11/13/2022] Open
Abstract
Abstract
OBJECTIVES
We aimed to determine whether non-A non-B aortic dissection (AD) differs in morphologic and haemodynamic properties from type B AD.
METHODS
We simulated and compared haemodynamics of patients with acute type B or acute non-A non-B AD by means of computational fluid dynamics. Wall pressure and wall shear stress (WSS) in both the true lumen (TL) and false lumen (FL) at early, mid- and late systole were evaluated. Morphology, WSS and the FL/TL wall pressure ratio were compared between groups.
RESULTS
Nineteen patients (type B, n = 7; non-A non-B, n = 12) were included. The median age (51 [46, 67] vs 53 [50, 63] years; P = 0.71) and a complicated course (14% vs 33%; P = 0.6) did not differ between the type B group and the non-A non-B group. However, the median entry tear width was increased in the non-A non-B group (9.7 [7.3, 12.7] vs 16.3 [11.9, 24.9] mm; P = 0.010). Streamlines showed, in patients with non-A non-B AD, blood from the TL flowed into the FL via the entry tear. Prevalence of a FL/TL wall pressure ratio >1.0 (type B versus non-A non-B) at early, mid- and late systole was 57% vs 83% (P = 0.31), 43% vs 83% (P = 0.13) and 57% vs 75% (P = 0.62), respectively. WSS did not differ between the groups.
CONCLUSIONS
The increased FL/TL wall pressure ratio observed during systole in non-A non-B AD may beget a complicated presentation.
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Affiliation(s)
- Naoyuki Kimura
- Department of Cardiovascular Surgery, Saitama Medical Center, Jichi Medical University , Saitama, Japan
| | - Masanori Nakamura
- Department of Electrical and Mechanical Engineering, Nagoya Institute of Technology , Nagoya, Japan
| | - Reiya Takagi
- Department of Electrical and Mechanical Engineering, Nagoya Institute of Technology , Nagoya, Japan
| | - Makiko Naka Mieno
- Department of Medical Informatics, Center for Information, Jichi Medical University , Shimotsuke, Japan
| | - Atsushi Yamaguchi
- Department of Cardiovascular Surgery, Saitama Medical Center, Jichi Medical University , Saitama, Japan
| | - Martin Czerny
- Department of Cardiovascular Surgery, University Heart Centre Freiburg, University of Freiburg , Freiburg, Germany
| | - Friedhelm Beyersdorf
- Department of Cardiovascular Surgery, University Heart Centre Freiburg, University of Freiburg , Freiburg, Germany
| | - Fabian Alexander Kari
- Department of Cardiovascular Surgery, University Heart Centre Freiburg, University of Freiburg , Freiburg, Germany
| | - Bartosz Rylski
- Department of Cardiovascular Surgery, University Heart Centre Freiburg, University of Freiburg , Freiburg, Germany
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Sieren MM, Widmann C, Weiss N, Moltz JH, Link F, Wegner F, Stahlberg E, Horn M, Oecherting TH, Goltz JP, Barkhausen J, Frydrychowicz A. Automated segmentation and quantification of the healthy and diseased aorta in CT angiographies using a dedicated deep learning approach. Eur Radiol 2021; 32:690-701. [PMID: 34170365 DOI: 10.1007/s00330-021-08130-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Accepted: 03/26/2021] [Indexed: 11/29/2022]
Abstract
OBJECTIVES To develop and validate a deep learning-based algorithm for segmenting and quantifying the physiological and diseased aorta in computed tomography angiographies. METHODS CTA exams of the aorta of 191 patients (68.1 ± 14 years, 128 male), performed between 2015 and 2018, were retrospectively identified from our imaging archive and manually segmented by two investigators. A 3D U-Net model was trained on the data, which was divided into a training, a validation, and a test group at a ratio of 7:1:2. Cases in the test group (n = 41) were evaluated to compare manual and automatic segmentations. Dice similarity coefficient (DSC), mean surface distance (MSD), and Hausdorff surface distance (HSD) were extracted. Maximum diameter, effective diameter, and area were quantified and compared between both segmentations at eight anatomical landmarks, and at the maximum area of an aneurysms if present (n = 14). Statistics included error calculation, intraclass correlation coefficient, and Bland-Altman analysis. RESULTS A DSC of 0.95 [0.94; 0.95] and an MSD of 0.76 [0.06; 0.99] indicated close agreement between segmentations. HSD was 8.00 [4.47; 10.00]. The largest absolute errors were found in the ascending aorta with 0.8 ± 1.5 mm for maximum diameter and at the coeliac trunk with - 30.0 ± 81.6 mm2 for area. Results for absolute errors in aneurysms were - 0.5 ± 2.3 mm for maximum diameter, 0.3 ± 1.6 mm for effective diameter, and 64.9 ± 114.9 mm2 for area. ICC showed excellent agreement (> 0.9; p < 0.05) between quantitative measurements. CONCLUSIONS Automated segmentation of the aorta on CTA data using a deep learning algorithm is feasible and allows for accurate quantification of the aortic lumen even if the vascular architecture is altered by disease. KEY POINTS • A deep learning-based algorithm can automatically segment the aorta, mostly within acceptable margins of error, even if the vascular architecture is altered by disease. • Quantifications performed in the segmentations were mostly within clinically acceptable limits, even in pathologically altered segments of the aorta.
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Affiliation(s)
- Malte Maria Sieren
- Department of Radiology and Nuclear Medicine, University Hospital Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, 23562, Lübeck, Germany.
| | - Cornelia Widmann
- Department of Radiology and Nuclear Medicine, University Hospital Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, 23562, Lübeck, Germany
| | - Nick Weiss
- Fraunhofer Institute for Digital Medicine MEVIS, Lübeck/Bremen, Germany
| | - Jan Hendrik Moltz
- Fraunhofer Institute for Digital Medicine MEVIS, Lübeck/Bremen, Germany
| | - Florian Link
- Fraunhofer Institute for Digital Medicine MEVIS, Lübeck/Bremen, Germany
| | - Franz Wegner
- Department of Radiology and Nuclear Medicine, University Hospital Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, 23562, Lübeck, Germany
| | - Erik Stahlberg
- Department of Radiology and Nuclear Medicine, University Hospital Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, 23562, Lübeck, Germany
| | - Marco Horn
- Department for Vascular Surgery, University Hospital Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Thekla Helene Oecherting
- Department of Radiology and Nuclear Medicine, University Hospital Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, 23562, Lübeck, Germany
| | - Jan Peter Goltz
- Institute for Diagnostic and Interventional Radiology/Neuroradiology, Sana Clinic, Lübeck, Germany
| | - Joerg Barkhausen
- Department of Radiology and Nuclear Medicine, University Hospital Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, 23562, Lübeck, Germany
| | - Alex Frydrychowicz
- Department of Radiology and Nuclear Medicine, University Hospital Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, 23562, Lübeck, Germany
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Cao L, Ge Y, He Y, Wang X, Rong D, Lu W, Liu X, Guo W. Association between aortic arch angulation and bird-beak configuration after thoracic aortic stent graft repair of type B aortic dissection. Interact Cardiovasc Thorac Surg 2021; 31:688-696. [PMID: 33025008 DOI: 10.1093/icvts/ivaa171] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 07/06/2020] [Accepted: 07/15/2020] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVES The goal of this study was to investigate factors favouring the bird-beak configuration after thoracic endovascular aortic repair (TEVAR) for type B aortic dissection. METHODS We retrospectively analysed 76 patients with type B aortic dissection who underwent landing zone 1 and 2 TEVAR from December 2015 to January 2018. Preoperative aortic arch geometry (aortic arch length, maximal diameter and angulation), stent graft details and operative details were evaluated. A bird-beak configuration was defined as a ≥5-mm gap between the proximal end of the stent and the aortic wall of the lesser curvature. RESULTS Patients were stratified into those with (n = 46) and without (n = 30) a bird-beak configuration. The baseline demographics, dissection chronicity, clinical features and implanted devices were largely similar between the 2 groups. No significant difference was observed in the arch length or maximal arch diameter. However, the mean aortic arch angulation was greater in patients with than without a bird-beak configuration (61.4° vs 51.3°; P < 0.001). No influence of either the stent graft brand or the proximal stent graft type was observed. The multivariable analysis showed that the aortic arch angulation was an independent risk factor for a bird-beak configuration (odds ratio 1.15, 95% confidence interval 1.07-1.24; P < 0.001). A cut-off angle of 59.15° was predictive of a bird-beak configuration (sensitivity 59%; specificity 77%). CONCLUSIONS The preoperative aortic arch angulation was an independent predictor of a postoperative bird-beak configuration in patients with type B aortic dissection who underwent TEVAR that involved the aortic arch. An angle of >59.15° may imply a relatively hostile anatomy with a higher risk of a bird-beak configuration.
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Affiliation(s)
- Long Cao
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, China.,Department of General Surgery, Chinese PLA No. 983 Hospital, Tianjin, China
| | - Yangyang Ge
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, China
| | - Yuan He
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, China
| | - Xinhao Wang
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, China
| | - Dan Rong
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, China
| | - Weihang Lu
- Department of General Surgery, The Sixth Medical Center of Chinese, PLA General Hospital, Beijing, China
| | - Xiaoping Liu
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, China
| | - Wei Guo
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, China
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Wan Ab Naim WN, Sun Z, Liew YM, Chan BT, Jansen S, Lei J, Ganesan PB, Hashim SA, Sridhar GS, Lim E. Comparison of diametric and volumetric changes in Stanford type B aortic dissection patients in assessing aortic remodeling post-stent graft treatment. Quant Imaging Med Surg 2021; 11:1723-1736. [PMID: 33936960 DOI: 10.21037/qims-20-814] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Background The study aims to analyze the correlation between the maximal diameter (both axial and orthogonal) and volume changes in the true (TL) and false lumens (FL) after stent-grafting for Stanford type B aortic dissection. Method Computed tomography angiography was performed on 13 type B aortic dissection patients before and after procedure, and at 6 and 12 months follow-up. The lumens were divided into three regions: the stented area (Region 1), distal to the stent graft to the celiac artery (Region 2), and between the celiac artery and the iliac bifurcation (Region 3). Changes in aortic morphology were quantified by the increase or decrease of diametric and volumetric percentages from baseline measurements. Results At Region 1, the TL diameter and volume increased (pre-treatment: volume =51.4±41.9 mL, maximal axial diameter =22.4±6.8 mm, maximal orthogonal diameter =21.6±7.2 mm; follow-up: volume =130.7±69.2 mL, maximal axial diameter =40.1±8.1 mm, maximal orthogonal diameter =31.9+2.6 mm, P<0.05 for all comparisons), while FL decreased (pre-treatment: volume =129.6±150.5 mL; maximal axial diameter =43.0±15.8 mm; maximal orthogonal diameter =28.3±12.6 mm; follow-up: volume =66.6±95.0 mL, maximal axial diameter =24.5±19.9 mm, maximal orthogonal diameter =16.9±13.7, P<0.05 for all comparisons). Due to the uniformity in size throughout the vessel, high concordance was observed between diametric and volumetric measurements in the stented region with 93% and 92% between maximal axial diameter and volume for the true/false lumens, and 90% and 92% between maximal orthogonal diameter and volume for the true/false lumens. Large discrepancies were observed between the different measurement methods at regions distal to the stent graft, with up to 46% differences between maximal orthogonal diameter and volume. Conclusions Volume measurement was shown to be a much more sensitive indicator in identifying lumen expansion/shrinkage at the distal stented region.
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Affiliation(s)
- Wan Naimah Wan Ab Naim
- Faculty of Mechanical and Automotive Engineering Technology, University Malaysia Pahang, 26600, Pekan, Pahang, Malaysia
| | - Zhonghua Sun
- Discipline of Medical Radiation Science, Curtin University, Perth 6845, Australia
| | - Yih Miin Liew
- Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Bee Ting Chan
- Department of Mechanical, Materials and Manufacturing, Faculty of Science and Engineering, University of Nottingham Malaysia, 43500 Semenyih, Selangor, Malaysia
| | - Shirley Jansen
- Department of Vascular Surgery, Sir Charles Gairdner Hospital, Nedlands, Perth WA 6009, Australia.,Curtin Medical School, Curtin University, Perth 6845, Australia.,University of Western Australia, Crawley WA 6009, Australia
| | - Jing Lei
- Department of Medical Imaging, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Poo Balan Ganesan
- Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Shahrul Amry Hashim
- Department of Surgery, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | | | - Einly Lim
- Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia
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Pang H, Chen Y, He X, Tan X, Wang J, Yao Q, Liu X. Twelve-Month Computed Tomography Follow-Up after Thoracic Endovascular Repair for Acute Complicated Aortic Dissection. Ann Vasc Surg 2020; 71:444-450. [PMID: 32891743 DOI: 10.1016/j.avsg.2020.08.125] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 07/25/2020] [Accepted: 08/05/2020] [Indexed: 01/16/2023]
Abstract
BACKGROUND To explore the impact of thoracic endovascular aortic repair (TEVAR) on aortic remodeling (AR) and the relationship between AR and complications after TEVAR. METHODS A total of 56 patients (2 type IIIA aortic dissection [AD] and 54 type IIIB AD) with complicated acute type B aortic dissection suitable for TEVAR were prospectively enrolled. There were 44 men (78%) and 12 women (22%) with an average age of 54 ± 13.8 years. Aortic enhanced computed tomography (CT) was performed pre-TEVAR and 3, 6, and 12 months postoperatively. The morphological changes in AR, namely aortic volume and false lumen thrombosis, were obtained by analyzing the CT data. The effect of TEVAR on AR was determined by the morphological changes in the aorta. The relationship between AR index, false lumen thrombosis, and complications was analyzed. RESULTS The volume of the thoracic aortic true lumen gradually increased post-TEVAR, whereas the volume of the thoracic aortic false lumen gradually decreased. The volume of abdominal aortic total lumen and false lumen increased 6 months postoperatively. The AR index increased significantly 3 months postoperatively, which was negatively correlated with complications and mortality. The thoracic and abdominal aortic false lumen thrombosis developed gradually after TEVAR, and the degree of thoracic aortic false lumen thrombosis was negatively correlated with complications and mortality. CONCLUSIONS TEVAR promotes AR. AR index and the degree of thoracic aortic false lumen thrombosis can serve as predictors of complications and mortality.
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Affiliation(s)
- Huajin Pang
- Division of Vascular and Interventional Radiology, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China.
| | - Yong Chen
- Division of Vascular and Interventional Radiology, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xiaofeng He
- Division of Vascular and Interventional Radiology, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xiangliang Tan
- Department of Radiology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Junling Wang
- Department of Radiology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Qianqian Yao
- Department of Radiology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xuehan Liu
- Department of Statistics, Huazhong University of Science and Technology, Wuhan, China
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Cao L, Lu W, Ge Y, Wang X, He Y, Sun G, Liu J, Liu X, Jia X, Xiong J, Ma X, Zhang H, Wang L, Guo W. Altered aortic arch geometry in patients with type B aortic dissection. Eur J Cardiothorac Surg 2020; 58:714-721. [PMID: 32303067 DOI: 10.1093/ejcts/ezaa102] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 02/20/2020] [Accepted: 02/21/2020] [Indexed: 01/22/2023] Open
Abstract
Abstract
OBJECTIVES
This study aims to evaluate differences in proximal aorta geometry and identify specific anatomical predictors of type B aortic dissection (TBAD).
METHODS
We evaluated computed tomographic angiograms of controls (n = 185) and patients with acute TBAD (n = 173). Using propensity score matching, we created 2 groups of 127 patients. 3mensio Vascular software was used to analyse the computed tomographic angiograms and measure the diameter, length, tortuosity index and angulation of the proximal aorta (divided into ascending aorta and aortic arch). Tortuosity index was calculated by dividing the centre lumen line length of the aortic segment by its shortest length. Angulation was measured by the centre lumen line ‘tangent line angle’. Two independent multivariable models identified significant anatomical associations regarding the tortuosity and angulation geometry.
RESULTS
Aortic diameter and ascending aorta and aortic arch lengths in TBAD increased significantly. The aortic arch tortuosity was significantly higher in the TBAD group (P < 0.001), with no difference regarding the ascending aorta (P = 0.11). Ascending aorta and aortic arch angulation were significantly higher in the TBAD group (P = 0.01, P < 0.001, respectively). Multivariable analyses showed that increased aortic arch tortuosity and angulation were significant predictors of the development of TBAD [odds ratio (OR) 1.91, 95% confidence interval (CI) 1.40–2.59; P < 0.001 and OR 1.08, 95% CI 1.04–1.12; P < 0.001], respectively.
CONCLUSIONS
In addition to proximal aorta dilation and elongation, we identified increased aortic arch tortuosity and angulation as possible specific predictors of TBAD.
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Affiliation(s)
- Long Cao
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, China
- Department of General Surgery, Chinese PLA No. 983 Hospital, Tianjin, China
| | - Weihang Lu
- Department of General Surgery, The Sixth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Yangyang Ge
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, China
| | - Xinhao Wang
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, China
| | - Yuan He
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, China
| | - Guoyi Sun
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, China
| | - Jie Liu
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, China
| | - Xiaoping Liu
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, China
| | - Xin Jia
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, China
| | - Jiang Xiong
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, China
| | - Xiaohui Ma
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, China
| | - Hongpeng Zhang
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, China
| | - Lijun Wang
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, China
| | - Wei Guo
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, China
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9
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Houben IB, van Bakel TMJ, Burris NS, Moll FL, van Herwaarden JA, Patel HJ. Critical appraisal of multidimensional CT measurements following acute open repair of type A aortic dissection. J Card Surg 2020; 35:634-644. [PMID: 32027413 PMCID: PMC7079063 DOI: 10.1111/jocs.14446] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
INTRODUCTION To identify patients with aneurysmal degeneration of the native aorta following type A aortic dissection (TAAD), reproducible serial measurements of aortic dimensions are critical. We used a systematic workflow for measuring aortic geometry following TAAD, using computed tomography angiography data, and test its reproducibility. METHODS The workflow for aortic measurements included centerline generation, luminal diameter, and area measurement at six anatomically defined locations along the aorta and luminal volumetric measurements in the descending aorta. Two independent observers measured the aortic geometry in 20 surgically repaired TAAD patients, preoperatively and at 3 months follow-up. To test reproducibility, intraobserver and interobserver agreement scores were analyzed using a concordance correlation coefficient (CCC). RESULTS The interobserver agreement scores of the diameter, area, and volumetric measurements in the descending aorta were acceptable. The agreement scores of the area measurements were highest, with CCCs ranging from 0.909 to 0.984. Luminal diameter measurements scored lower than luminal area measurements and were least reproducible at the mid aortic arch (CCC < 0.886). Overall, intraobserver agreement scores were better than interobserver agreement scores (SD of mean difference was 1.89 vs 1.94 for intraobserver vs interobserver diameter measurements, and 0.61 vs 0.66 for area measurements). CONCLUSION Although overall reproducibility was acceptable in descending aortic measurements, our results show that it remains challenging to reliably measure luminal diameters, compared with areas. To aid identification of early adverse remodeling following acute TAAD, novel two- and three-dimensional measurement techniques are needed that capture locoregional changes in the false lumen and true lumen morphology more accurately.
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Affiliation(s)
- Ignas B Houben
- Department of Cardiac Surgery, Frankel Cardiovascular Center, University of Michigan Health Center, Ann Arbor, Michigan
| | - Theodorus M J van Bakel
- Department of Vascular Surgery, Frankel Cardiovascular Center, University of Michigan Health Center, Ann Arbor, Michigan
| | - Nicholas S Burris
- Department of Radiology, University of Michigan Health Center, Ann Arbor, Michigan
| | - Frans L Moll
- Department of Vascular Surgery, University Medical Center Utrecht, Heidelberglaan, The Netherlands
| | - Joost A van Herwaarden
- Department of Vascular Surgery, University Medical Center Utrecht, Heidelberglaan, The Netherlands
| | - Himanshu J Patel
- Department of Cardiac Surgery, Frankel Cardiovascular Center, University of Michigan Health Center, Ann Arbor, Michigan
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Cao L, Shi R, Ge Y, Xing L, Zuo P, Jia Y, Liu J, He Y, Wang X, Luan S, Chai X, Guo W. Fully automatic segmentation of type B aortic dissection from CTA images enabled by deep learning. Eur J Radiol 2019; 121:108713. [PMID: 31683252 DOI: 10.1016/j.ejrad.2019.108713] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Revised: 09/04/2019] [Accepted: 10/13/2019] [Indexed: 01/16/2023]
Abstract
PURPOSE This study sought to establish a robust and fully automated Type B aortic dissection (TBAD) segmentation method by leveraging the emerging deep learning techniques. METHODS Preoperative CTA images of 276 patients with TBAD were retrospectively collected from January 2011 to December 2018. Using a reproducible manual segmentation protocol of three labels (whole aorta, true lumen (TL), and false lumen (FL)), a ground truth database (n = 276) was established and randomly divided into training and testing sets in a rough 8:1 ratio. Three convolutional neural network (CNN) models were developed on the training set (n = 246): single one-task (CNN1), single multi-task (CNN2), and serial multi-task (CNN3) models. Performance was evaluated using the Dice coefficient score (DCS) and lumen volume accuracy on the testing set (n = 30). Pearson correlation, Intra-class correlation coefficients and Bland-Altman plots were used to evaluate the inter-observer measurement agreement. RESULTS CNN3 performed the best, with mean DCSs of 0.93 ± 0.01, 0.93 ± 0.01 and 0.91 ± 0.02 for the whole aorta, TL, and FL, respectively (p < 0.05). Each label volume from CNN3 showed excellent agreement with the ground truth, with mean volume differences of -31.05 (-82.76 to 20.65) ml, 4.79 (-11.04 to 20.63) ml, and 8.67(-11.40 to 28.74) ml for the whole aorta, TL, and FL, respectively. The segmentation speed of CNN3 was 0.038 ± 0.006 s/image. CONCLUSION Deep learning-based model provides a promising approach for accurate and efficient segmentation of TBAD and makes it possible for automated measurements of TBAD anatomical features.
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Affiliation(s)
- Long Cao
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, PR China.
| | - Ruiqiong Shi
- Institute of Information Science, Beijing Jiaotong University, Beijing, PR China; Huiying Medical Technology Co., Ltd., Dongsheng Science and Technology Park, Beijing, PR China.
| | - Yangyang Ge
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, PR China.
| | - Lei Xing
- Department of Radiation Oncology Stanford University School of Medicine, Stanford, CA, USA.
| | - Panli Zuo
- Huiying Medical Technology Co., Ltd., Dongsheng Science and Technology Park, Beijing, PR China.
| | - Yan Jia
- Huiying Medical Technology Co., Ltd., Dongsheng Science and Technology Park, Beijing, PR China.
| | - Jie Liu
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, PR China.
| | - Yuan He
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, PR China.
| | - Xinhao Wang
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, PR China.
| | - Shaoliang Luan
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, PR China.
| | - Xiangfei Chai
- Huiying Medical Technology Co., Ltd., Dongsheng Science and Technology Park, Beijing, PR China.
| | - Wei Guo
- Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital, Beijing, PR China.
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Spinelli D, Benedetto F, Donato R, Piffaretti G, Marrocco-Trischitta MM, Patel HJ, Eagle KA, Trimarchi S. Current evidence in predictors of aortic growth and events in acute type B aortic dissection. J Vasc Surg 2018; 68:1925-1935.e8. [PMID: 30115384 DOI: 10.1016/j.jvs.2018.05.232] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Accepted: 05/31/2018] [Indexed: 01/16/2023]
Abstract
OBJECTIVES Acute type B aortic dissection can have a stable course or evolve into aneurysm and subsequent adverse events. The aim of this systematic review was to analyze the morphologic predictors of an adverse course to establish their validity based on consistency of results. METHODS Fifty-one studies were included in this review, reporting on aortic size, false lumen (FL) size, primary entry tear (ET) size and location, status of FL thrombosis, number of ETs, branch vessels involvement, and FL longitudinal extent. RESULTS Some predictors showed good consistency, whereas others did not. Aortic size was the most investigated predictor. A larger diameter at presentation predicted worse outcomes, with few exceptions. Both FL size and size relative to true lumen size also predicted an adverse course, although a standardized measurement method was not used. Regarding primary ET size and location, evidence was sparse and somewhat conflicting. Although FL complete thrombosis was consistently associated with a more benign course, the role of partial thrombosis remained unclear and the concept of FL saccular formation might account for the inconsistency, but further evidence is needed. A higher number of re-entry tears was considered to be protective against false channel expansion, but results need to be confirmed. The predictive role of branch vessels involvement and FL longitudinal extent remain controversial. CONCLUSIONS Among several predictors of aortic growth and events in acute type B aortic dissection, controversial and even conflicting results have been described. Consistent evidence has been demonstrated only for two predictors: aortic size at presentation is associated with adverse events and total FL thrombosis has a protective role.
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Affiliation(s)
- Domenico Spinelli
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, Policlinico G. Martino, University of Messina, Messina, Italy; Thoracic Aortic Research Center, IRCCS Policlinico San Donato, San Donato Milanese, Milan, Italy; Frankel Cardiovascular Center, University of Michigan, Ann Arbor, Mich.
| | - Filippo Benedetto
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, Policlinico G. Martino, University of Messina, Messina, Italy
| | - Rocco Donato
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, Policlinico G. Martino, University of Messina, Messina, Italy
| | - Gabriele Piffaretti
- Vascular Surgery, Department of Surgery and Morphological Sciences, Circolo University Teaching Hospital, University of Insubria School of Medicine, Varese, Italy
| | | | - Himanshu J Patel
- Frankel Cardiovascular Center, University of Michigan, Ann Arbor, Mich
| | - Kim A Eagle
- Frankel Cardiovascular Center, University of Michigan, Ann Arbor, Mich
| | - Santi Trimarchi
- Thoracic Aortic Research Center, IRCCS Policlinico San Donato, San Donato Milanese, Milan, Italy; Department of Scienze Biomediche per la Salute, University of Milan, Milan, Italy
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12
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Kamman AV, Brunkwall J, Verhoeven EL, Heijmen RH, Trimarchi S, Kasprzak P, Brunkwall J, Heijmen R, Alric P, Verhoeven E, Schumacher H, Fabiani JN, Eckstein HH, Taylor P, Mailina M, Mangialardi N, Larzon T, Böckler D, Lönn L, Dialetto G, Trimarchi S, Lammer J. Predictors of aortic growth in uncomplicated type B aortic dissection from the Acute Dissection Stent Grafting or Best Medical Treatment (ADSORB) database. J Vasc Surg 2017; 65:964-971.e3. [DOI: 10.1016/j.jvs.2016.09.033] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Accepted: 09/01/2016] [Indexed: 01/16/2023]
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