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Peng T, Pu H, Qiu P, Yang H, Ju Z, Ma H, Zhang J, Chen K, Zhan Y, Sheng R, Wang Y, Zha B, Yang Y, Fang S, Lu X, Zhou J. A stable and quantitative method for dimensionality reduction of aortic centerline. Front Cardiovasc Med 2022; 9:940711. [PMID: 36119736 PMCID: PMC9473432 DOI: 10.3389/fcvm.2022.940711] [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: 05/10/2022] [Accepted: 08/11/2022] [Indexed: 11/13/2022] Open
Abstract
Aortic dissection (AD) is a fatal aortic disease with high mortality. Assessing the morphology of the aorta is critical for diagnostic and surgical decisions. Aortic centerline projection methods have been used to evaluate the morphology of the aorta. However, there is a big difference between the current model of primary plane projection (PPP) and the actual shape of individuals, which is not conducive to morphological statistical analysis. Finding a method to compress the three-dimensional information of the aorta into two dimensions is helpful to clinical decision-making. In this paper, the evaluation parameters, including contour length (CL), enclosure area, and the sum of absolute residuals (SAR), were introduced to objectively evaluate the optimal projection plane rather than artificial subjective judgment. Our results showed that the optimal projection plane could be objectively characterized by the three evaluation parameters. As the morphological criterion, SAR is optimal among the three parameters. Compared to the optimal projection plane selected by traditional PPP, our method has better AD discrimination in the analysis of aortic tortuosity, and is conducive to the clinical operation of AD. Thus, it has application prospects for the preprocessing techniques for the geometric morphology analysis of AD.
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Affiliation(s)
- Tao Peng
- School of Biomedical Engineering, Anhui Medical University, Hefei, China
| | - Hongji Pu
- Department of Vascular Surgery, Shanghai Ninth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Peng Qiu
- Department of Vascular Surgery, Shanghai Ninth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Han Yang
- School of Biomedical Engineering, Anhui Medical University, Hefei, China
| | - Ziyue Ju
- School of Biomedical Engineering, Anhui Medical University, Hefei, China
| | - Hui Ma
- School of Biomedical Engineering, Anhui Medical University, Hefei, China
| | - Juanlin Zhang
- School of Biomedical Engineering, Anhui Medical University, Hefei, China
| | - Kexin Chen
- School of Biomedical Engineering, Anhui Medical University, Hefei, China
| | - Yanqing Zhan
- The Fourth Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Rui Sheng
- Chaohu Clinical Medical College, Anhui Medical University, Hefei, China
| | - Yi Wang
- School of Biomedical Engineering, Anhui Medical University, Hefei, China
| | - Binshan Zha
- Department of Vascular and Thyroid Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Yang Yang
- Department of Computer Science and Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Shu Fang
- School of Biomedical Engineering, Anhui Medical University, Hefei, China
| | - Xinwu Lu
- Department of Vascular Surgery, Shanghai Ninth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jinhua Zhou
- School of Biomedical Engineering, Anhui Medical University, Hefei, China
- 3D-Printing and Tissue Engineering Center, Anhui Provincial Institute of Translational Medicine, Anhui Medical University, Hefei, China
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Qi Y, Ma X, Li G, Ma X, Wang Q, Yu D. Three-Dimensional Visualization and Imaging of the Entry Tear and Intimal Flap of Aortic Dissection Using CT Virtual Intravascular Endoscopy. PLoS One 2016; 11:e0164750. [PMID: 27760170 PMCID: PMC5070738 DOI: 10.1371/journal.pone.0164750] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Accepted: 10/02/2016] [Indexed: 01/02/2023] Open
Abstract
AIMS Conventional computed tomography (CT) approaches provides limited visualization of the entire endoluminal changes of aortic dissection (AD), which is essential for its treatment. As an important supplement, three-dimensional CT virtual intravascular endoscopy (VIE) can show relevant details. This study aims to determine the value of VIE in displaying the entry tear and intimal flap of AD. METHODS AND RESULTS Among 127 consecutive symptomatic patients with suspected AD who underwent CT angiography (CTA), 84 subjects were confirmed to have AD and were included in the study. Conventional CT and VIE images were observed and evaluated. From the 92 entry tears revealed via conventional CT, 88 (95.7%) tears appeared on VIE with round (n = 26), slit-shaped (n = 9), or irregular (n = 53) shapes, whereas the intimal flaps were sheetlike (n = 34), tubular (n = 34), wavelike (n = 13), or irregular (n = 7) in shape. The VIE also showed the spatial relationship between the torn flap and adjacent structures. Among 58 entry tears with multiple-line type flap shown on conventional CT, 41 (70.7%) appeared with an irregular shape on VIE, whereas among 30 tears with single-line type flap, 17 (56.7%) appeared as round or slit-shaped on VIE. These results demonstrated a significant difference (P < 0.05). The poor display of tears on VIE was related to the low CT attenuation values in lumen or in neighboring artifacts (P < 0.01). CONCLUSION CT VIE presents the complete configurations and details of the intimal tears and flaps of AD better than conventional CT approaches. Accordingly, it should be recommended as a necessary assessment tool for endovascular therapy and as part of strategy planning in pre-surgical patients.
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Affiliation(s)
- Yafei Qi
- Qilu Hospital of Shandong University, Jinan, Shandong Province, China
| | - Xiaoyuan Ma
- Qilu Hospital of Shandong University, Jinan, Shandong Province, China
| | - Gang Li
- Radiology Department, Jiaotong Hospital of Shandong Province, Jinan, Shandong Province, China
| | - Xiangxing Ma
- Radiology Department, Qilu Hospital of Shandong University, Jinan, Shandong Province, China
| | - Qing Wang
- Radiology Department, Qilu Hospital of Shandong University, Jinan, Shandong Province, China
| | - Dexin Yu
- Radiology Department, Qilu Hospital of Shandong University, Jinan, Shandong Province, China
- * E-mail:
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Grimaldi V, Schiano C, Casamassimi A, Zullo A, Soricelli A, Mancini FP, Napoli C. Imaging techniques to evaluate cell therapy in peripheral artery disease: state of the art and clinical trials. Clin Physiol Funct Imaging 2014; 36:165-78. [PMID: 25385089 DOI: 10.1111/cpf.12210] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2014] [Accepted: 10/10/2014] [Indexed: 12/13/2022]
Abstract
Cell-based therapies, as potential approach to cure peripheral artery disease (PAD), have been clinically investigated after promising results in preclinical models. The so far published studies are very heterogeneous, as different cell sources, cell types, amounts of administered cells and delivering strategies have been used. Overall, cell therapies for PAD bring about a general improvement of patient's clinical condition, even though conclusions cannot be established due to the small size and non-randomized design of these trials. In this context, non-invasive imaging techniques, aimed to monitor angiogenesis and neovascularization after cell therapy, will help the follow-up of clinical studies. However, still much work is needed to establish advanced imaging procedure to overcome the limitation of the current techniques and to accumulate more data in large populations of patients. Here, we report the main imaging techniques employed to evaluate the outcome of the different cell-based therapies in PAD. Moreover, we focus on both published and ongoing clinical trials utilizing cell therapy in PAD.
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Affiliation(s)
- Vincenzo Grimaldi
- U.O.C. Division of Immunohematology, Transfusion Medicine and Transplant Immunology [SIMT], Regional Reference Laboratory of Transplant Immunology [LIT], Azienda Universitaria Policlinico (AOU), Second University of Naples (SUN), Naples, Italy
| | - Concetta Schiano
- Institute of Diagnostic and Nuclear Development (SDN) IRCCS, Naples, Italy
| | - Amelia Casamassimi
- Department of Biochemistry, Biophysics and General Pathology, Second University of Naples, Naples, Italy
| | - Alberto Zullo
- Department of Sciences and Technologies, University of Sannio, Benevento, Italy.,CEINGE, Advanced Biotechnologies, Naples, Italy
| | - Andrea Soricelli
- Institute of Diagnostic and Nuclear Development (SDN) IRCCS, Naples, Italy
| | | | - Claudio Napoli
- U.O.C. Division of Immunohematology, Transfusion Medicine and Transplant Immunology [SIMT], Regional Reference Laboratory of Transplant Immunology [LIT], Azienda Universitaria Policlinico (AOU), Second University of Naples (SUN), Naples, Italy.,Institute of Diagnostic and Nuclear Development (SDN) IRCCS, Naples, Italy
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Ding P, Fung GSK, Lin M, Holman SD, German RZ. The effect of bilateral superior laryngeal nerve lesion on swallowing: a novel method to quantitate aspirated volume and pharyngeal threshold in videofluoroscopy. Dysphagia 2014; 30:47-56. [PMID: 25270532 DOI: 10.1007/s00455-014-9572-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Accepted: 09/10/2014] [Indexed: 01/06/2023]
Abstract
The purpose was to determine the effect of bilateral superior laryngeal nerve (SLN) lesion on swallowing threshold volume and the occurrence of aspiration, using a novel measurement technique for videofluoroscopic swallowing studies (VFSS) in infant pigs. We used a novel radiographic phantom to assess volume of the milk containing barium from fluoroscopy. The custom made phantom was firstly calibrated by comparing image intensity of the phantom with known cylinder depths. Secondly, known volume pouches of milk in a pig cadaver were compared to volumes calculated with the phantom. Using these standards, we calculated the volume of milk in the valleculae, esophagus and larynx, for 205 feeding sequences from four infant pigs feeding before and after had bilateral SLN lesions. Swallow safety was assessed using the tested and validated IMPAS (Dysphagia 28(2):178-187, 2013). The log-linear correlation between image intensity values from the phantom filled with barium milk and the known phantom cylinder depths was strong (R (2) > 0.95), as was the calculated volumes of the barium milk pouches. The threshold volume of bolus in the valleculae during feeding was significantly larger after bilateral SLN lesion than in control swallows (p < 0.001). The IMPAS score increased in the lesioned swallows relative to the controls, indicating substantially impaired swallowing (p < 0.001). Bilateral SLN lesion dramatically increased the aspiration incidence and the threshold volume of bolus in valleculae. The use of this phantom permits quantification of the aspirated volume of fluid, allowing for more accurate 3D volume estimation from 2D X-ray in VFSS.
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Affiliation(s)
- Peng Ding
- Department of Physical Medicine and Rehabilitation, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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