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Melloni A, D’Oria M, Dioni P, Ongaro D, Badalamenti G, Lepidi S, Bonardelli S, Bertoglio L. Plug-Based Embolization Techniques of Aortic Side Branches during Standard and Complex Endovascular Aortic Repair. J Clin Med 2024; 13:2084. [PMID: 38610847 PMCID: PMC11012954 DOI: 10.3390/jcm13072084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Revised: 03/20/2024] [Accepted: 03/27/2024] [Indexed: 04/14/2024] Open
Abstract
Vascular plugs are an evolving family of vessel occluders providing a single-device embolization system for large, high-flow arteries. Nitinol mesh plugs and polytetrafluoroethylene membrane plugs are available in different configurations and sizes to occlude arteries from 3 to 20 mm in diameter. Possible applications during complex endovascular aortic procedures are aortic branch embolization to prevent endoleak or to gain an adequate landing zone, directional branch occlusion, and false lumen embolization in aortic dissection. Plugs are delivered through catheters or introducers, and their technical and clinical results are comparable to those of coil embolization. Plugs are more accurate than coils as repositionable devices, less prone to migration, and have fewer blooming artifacts on postoperative computed tomography imaging. Their main drawback is the need for larger delivery systems. This narrative review describes up-to-date techniques and technology for plug embolization in complex aortic repair.
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Affiliation(s)
- Andrea Melloni
- Division of Vascular Surgery, Department of Clinical and Experimental Sciences, University and ASST Spedali Civili Hospital of Brescia, 25123 Brescia, Italy; (P.D.); (D.O.); (S.B.); (L.B.)
| | - Mario D’Oria
- Division of Vascular and Endovascular Surgery, Cardiothoracovascular Department, University Hospital of Trieste ASUGI, 34139 Trieste, Italy; (M.D.); (G.B.); (S.L.)
| | - Pietro Dioni
- Division of Vascular Surgery, Department of Clinical and Experimental Sciences, University and ASST Spedali Civili Hospital of Brescia, 25123 Brescia, Italy; (P.D.); (D.O.); (S.B.); (L.B.)
| | - Deborah Ongaro
- Division of Vascular Surgery, Department of Clinical and Experimental Sciences, University and ASST Spedali Civili Hospital of Brescia, 25123 Brescia, Italy; (P.D.); (D.O.); (S.B.); (L.B.)
| | - Giovanni Badalamenti
- Division of Vascular and Endovascular Surgery, Cardiothoracovascular Department, University Hospital of Trieste ASUGI, 34139 Trieste, Italy; (M.D.); (G.B.); (S.L.)
| | - Sandro Lepidi
- Division of Vascular and Endovascular Surgery, Cardiothoracovascular Department, University Hospital of Trieste ASUGI, 34139 Trieste, Italy; (M.D.); (G.B.); (S.L.)
| | - Stefano Bonardelli
- Division of Vascular Surgery, Department of Clinical and Experimental Sciences, University and ASST Spedali Civili Hospital of Brescia, 25123 Brescia, Italy; (P.D.); (D.O.); (S.B.); (L.B.)
| | - Luca Bertoglio
- Division of Vascular Surgery, Department of Clinical and Experimental Sciences, University and ASST Spedali Civili Hospital of Brescia, 25123 Brescia, Italy; (P.D.); (D.O.); (S.B.); (L.B.)
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Performance of single-energy metal artifact reduction in cardiac computed tomography: A clinical and phantom study. J Cardiovasc Comput Tomogr 2020; 14:510-515. [DOI: 10.1016/j.jcct.2020.04.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 04/01/2020] [Accepted: 04/13/2020] [Indexed: 12/11/2022]
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McDonald J, Amirabadi A, Farhat Z, Temple M, Parra D, Amaral J, Connolly B. Experience with Compressed Gelfoam Plugs in Children during Liver Biopsies and Other IR Procedures: A Retrospective Single-Center Case Series. J Vasc Interv Radiol 2019; 30:1855-1862. [DOI: 10.1016/j.jvir.2019.04.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Revised: 03/09/2019] [Accepted: 04/02/2019] [Indexed: 10/26/2022] Open
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Pan YN, Chen G, Li AJ, Chen ZQ, Gao X, Huang Y, Mattson B, Li S. Reduction of Metallic Artifacts of the Post-treatment Intracranial Aneurysms: Effects of Single Energy Metal Artifact Reduction Algorithm. Clin Neuroradiol 2017; 29:277-284. [PMID: 29147735 DOI: 10.1007/s00062-017-0644-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Accepted: 10/24/2017] [Indexed: 01/03/2023]
Abstract
PURPOSE This study evaluated the quality of computed tomography (CT) and CT angiography images generated using the single-energy metal artifact reduction (SEMAR) algorithm during perfusion examination in patients who had undergone reconstruction with neurosurgical clipping or endovascular coiling for treatment of aneurysms. METHODS A total of 55 patients with implanted intracranial clips or coils (24 men and 31 women; mean age 60.15 ± 15.86 years) underwent perfusion studies evaluated by CT and CT angiography with a 320-row CT scanner. Images were reconstructed with either the SEMAR algorithm combined with iterative reconstruction (SEMAR group), or by iterative reconstruction only (non-SEMAR group control). The SEMAR and control images were compared for artifacts (index and maximum diameter), image quality, cerebral perfusion parameters, noise (images with the worst artifacts), and contrast-to-noise ratio. The metallic artifacts were visually evaluated by two radiologists using a four-point scale in a double-blinded manner. RESULTS The noise, artifact diameter, and artifact index of the SEMAR images were significantly lower than that of the control images, and the subjective image quality score and contrast-to-noise ratio were significantly higher (P < 0.01, all). The cerebral perfusion parameters of the SEMAR and control images were comparable (i. e. blood flow, blood volume, and mean transit time). CONCLUSION For imaging intracranial metallic implants, the SEMAR algorithm produced images with significantly fewer artifacts than the iterative reconstruction alone, with no statistical changes in perfusion parameters. Thus, SEMAR reconstruction can be instrumental in improving CT image quality and may ultimately improve the detection of postoperative complications and patient prognosis.
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Affiliation(s)
- Yu-Ning Pan
- Department of Radiology, Ningbo First Hospital, Ningbo Hospital, Zhejiang University, 315010, Ningbo, Zhejiang, China
| | - Ge Chen
- Department of Clinical medical engineering Ningbo First Hospital, Ningbo Hospital, Zhejiang University, 315010, Ningbo, Zhejiang, China
| | - Ai-Jing Li
- Department of Radiology, Ningbo No. 2 Hospital, 315010, Ningbo, Zhejiang, China.
| | - Zhao-Qian Chen
- Department of Radiology, Ningbo First Hospital, Ningbo Hospital, Zhejiang University, 315010, Ningbo, Zhejiang, China
| | - Xiang Gao
- Department of Neurosurgery, Ningbo First Hospital, Ningbo Hospital, Zhejiang University, 315010, Ningbo, Zhejiang, China
| | - Yi Huang
- Department of Neurosurgery, Ningbo First Hospital, Ningbo Hospital, Zhejiang University, 315010, Ningbo, Zhejiang, China
| | - Bradley Mattson
- Department of Radiology, Baystate Medical Center, University of Massachusetts School of Medicine, 01199, Springfield, MA, USA
| | - Shan Li
- Department of Radiology, Baystate Medical Center, University of Massachusetts School of Medicine, 01199, Springfield, MA, USA
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Reiter MJ, Hannemann NP, Schwope RB, Lisanti CJ, Learn PA. Role of imaging for patients with colorectal hepatic metastases: what the radiologist needs to know. ACTA ACUST UNITED AC 2016. [PMID: 26194812 DOI: 10.1007/s00261-015-0507-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Surgical resection of colorectal metastatic disease has increased as surgeons have adopted a more aggressive ideology. Current exclusion criteria are patients for whom a negative resection margin is not feasible or a future liver remnant (FLR) of greater than 20% is not achievable. The goal of preoperative imaging is to identify the number and distribution of liver metastases, in addition to establishing their relation to relevant intrahepatic structures. FLR can be calculated utilizing cross-sectional imaging to select out patients at risk for hepatic dysfunction after resection. MRI, specifically with gadoxetic acid contrast, is currently the preferred modality for assessment of hepatic involvement for patients with newly diagnosed colorectal cancer, to include those who have undergone neoadjuvant chemotherapy. Employment of liver-directed therapies has recently expanded and they may provide an alternative to hepatectomy in order to obtain locoregional control in poor surgical candidates or convert patients with initially unresectable disease into surgical candidates.
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Affiliation(s)
- Michael J Reiter
- Department of Radiology, Stony Brook University Medical Center, HSC Level 4, Room 120 East Loop Road, Stony Brook, NY, 11794, USA.
| | - Nathan P Hannemann
- Department of Radiology, Brooke Army Medical Center, San Antonio, TX, USA
| | - Ryan B Schwope
- Department of Radiology, Brooke Army Medical Center, San Antonio, TX, USA.,Uniformed Services University of the Health Sciences, Bethesda, MD, USA
| | - Christopher J Lisanti
- Department of Radiology, Brooke Army Medical Center, San Antonio, TX, USA.,Uniformed Services University of the Health Sciences, Bethesda, MD, USA
| | - Peter A Learn
- Department of Surgery, Brooke Army Medical Center, San Antonio, TX, USA
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Kidoh M, Utsunomiya D, Ikeda O, Tamura Y, Oda S, Funama Y, Yuki H, Nakaura T, Kawano T, Hirai T, Yamashita Y. Reduction of metallic coil artefacts in computed tomography body imaging: effects of a new single-energy metal artefact reduction algorithm. Eur Radiol 2015; 26:1378-86. [PMID: 26271621 DOI: 10.1007/s00330-015-3950-6] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Revised: 07/25/2015] [Accepted: 07/28/2015] [Indexed: 11/24/2022]
Abstract
OBJECTIVES We evaluated the effect of a single-energy metal artefact reduction (SEMAR) algorithm for metallic coil artefact reduction in body imaging. METHODS Computed tomography angiography (CTA) was performed in 30 patients with metallic coils (10 men, 20 women; mean age, 67.9 ± 11 years). Non-SEMAR images were reconstructed with iterative reconstruction alone, and SEMAR images were reconstructed with the iterative reconstruction plus SEMAR algorithms. We compared image noise around metallic coils and the maximum diameters of artefacts from coils between the non-SEMAR and SEMAR images. Two radiologists visually evaluated the metallic coil artefacts utilizing a four-point scale: 1 = extensive; 2 = strong; 3 = mild; 4 = minimal artefacts. RESULTS The image noise and maximum diameters of the artefacts of the SEMAR images were significantly lower than those of the non-SEMAR images (65.1 ± 33.0 HU vs. 29.7 ± 10.3 HU; 163.9 ± 54.8 mm vs. 10.3 ± 19.0 mm, respectively; P < 0.001). Better visual scores were obtained with the SEMAR technique (3.4 ± 0.6 vs. 1.0 ± 0.0, P < 0.001). CONCLUSIONS The SEMAR algorithm significantly reduced artefacts caused by metallic coils compared with the non-SEMAR algorithm. This technique can potentially increase CT performance for the evaluation of post-coil embolization complications. KEY POINTS • The new algorithm involves a raw data- and image-based reconstruction technique. • The new algorithm mitigates artefacts from metallic coils on body CT images. • The new algorithm significantly reduced artefacts caused by metallic coils. • The metal artefact reduction algorithm improves CT image quality after coil embolization.
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Affiliation(s)
- Masafumi Kidoh
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1, Honjo, Kumamoto, 860-8556, Japan.
| | - Daisuke Utsunomiya
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1, Honjo, Kumamoto, 860-8556, Japan
| | - Osamu Ikeda
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1, Honjo, Kumamoto, 860-8556, Japan
| | - Yoshitaka Tamura
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1, Honjo, Kumamoto, 860-8556, Japan
| | - Seitaro Oda
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1, Honjo, Kumamoto, 860-8556, Japan
| | - Yoshinori Funama
- Department of Medical Physics, Faculty of Life Sciences, Kumamoto University, 1-1-1, Honjo, Kumamoto, 860-8556, Japan
| | - Hideaki Yuki
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1, Honjo, Kumamoto, 860-8556, Japan
| | - Takeshi Nakaura
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1, Honjo, Kumamoto, 860-8556, Japan
| | - Takayuki Kawano
- Department of Neurosurgery, Faculty of Life Sciences Research, Kumamoto University Graduate School, 1-1-1, Honjo, Kumamoto, 860-8556, Japan
| | - Toshinori Hirai
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1, Honjo, Kumamoto, 860-8556, Japan
| | - Yasuyuki Yamashita
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1, Honjo, Kumamoto, 860-8556, Japan
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