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Cui Y, Zhao Y, Chen X, Jiang Y, Mao H, Ju S, Peng XG. Value of Non-Contrast-Enhanced Vessel Wall MR Imaging in Assessing Vascular Invasion of Retroperitoneal Tumors. J Magn Reson Imaging 2023. [PMID: 37929323 DOI: 10.1002/jmri.29120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 10/24/2023] [Accepted: 10/24/2023] [Indexed: 11/07/2023] Open
Abstract
BACKGROUND Due to their location and growth patterns, retroperitoneal tumors often involve the surrounding blood vessels. Clinical decisions on a proper treatment depend on the information on this condition. Evaluation of blood vessels using non-contrast-enhanced vessel wall MRI may provide noninvasive assessment of the extent of tumor invasion to assist clinical decision-making. PURPOSE To investigate the performance and potential of non-contrast-enhanced vessel wall MRI in evaluating the degree of vessel wall invasion of retroperitoneal tumors. STUDY TYPE Prospective. POPULATION Thirty-seven participants (mean age: 60.59 ± 11.77 years, 59% male) with retroperitoneal tumors close to vessels based on their diagnostic computer tomography. FIELD STRENGTH/SEQUENCES 3 T; vessel wall MRI sequences: two-dimensional T2-weighted MultiVane XD turbo spin-echo (2D-T2-MVXD-TSE) and three-dimensional T1-weighted motion sensitized driven equilibrium fat suppression turbo spin-echo (3D-T1-MSDE-TSE) sequences; conventional MRI sequences: T2-weighted fat suppression turbo spin-echo (T2-FS-TSE), T2-weighted turbo spin-echo (T2-TSE), modified Dixon T1-weighted fast field echo (T1-mDixon-FFE), and diffusion-weighted echo planar imaging (DWI-EPI) sequences. ASSESSMENT All patients underwent preoperative imaging using both non-contrast conventional and vessel wall MRI sequences. Images obtained from conventional and vessel wall MRI sequences were evaluated independently by three junior radiologists (3 and 2 years of experience in reading MRI) and reviewed by one senior radiologist (25 years of experience in reading MRI) to assess the degree of vessel wall invasion. MRI were validated results from the clinical standard diagnosis based on surgical confirmation or histopathological reports. Interobserver agreement was determined based on the reports from three readers with similar years of experiences. Intraobserver variability was assessed based on categorizing and recategorizing the vessels of 37 patients 1 month apart. STATISTICAL TESTS Intra-class correlation efficient (ICC), Chi-square test, McNemar test, area under the receiver-operating characteristic curve (AUC), Delong test, P < 0.05 was considered significant. RESULTS The accuracy of vessel wall MRI (91.96%, 95% CI: 85.43-95.71; 103 of 112) in detecting the degree of vessel wall invasion was significantly higher than that of conventional MRI (75%, 95% CI: 66.24-82.10; 84 of 112). The interobserver variability or reproducibility in categorization of the degree of vascular wall invasion was good in evaluating images from conventional and vessel wall MRI sequences (ICC = 0.821, 95% CI: 0.765-0.867 and ICC = 0.881, 95% CI: 0.842-0.913, respectively). DATA CONCLUSION Diagnosis of vessel wall invasion of retroperitoneal tumors and assessment of its severity can be improved by using non-contrast-enhanced vessel wall MRI. EVIDENCE LEVEL 1 TECHNICAL EFFICACY: Stage 3.
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Affiliation(s)
- Ying Cui
- Jiangsu Key Laboratory of Molecular and Functional Imaging, Department of Radiology, Zhongda Hospital, Medical School, Southeast University, Nanjing, China
| | - Yufei Zhao
- Jiangsu Key Laboratory of Molecular and Functional Imaging, Department of Radiology, Zhongda Hospital, Medical School, Southeast University, Nanjing, China
| | - Xiaohui Chen
- Jiangsu Key Laboratory of Molecular and Functional Imaging, Department of Radiology, Zhongda Hospital, Medical School, Southeast University, Nanjing, China
| | - Yang Jiang
- Jiangsu Key Laboratory of Molecular and Functional Imaging, Department of Radiology, Zhongda Hospital, Medical School, Southeast University, Nanjing, China
| | - Hui Mao
- Department of Radiology and Imaging Sciences, Emory University, Atlanta, Georgia, USA
| | - Shenghong Ju
- Jiangsu Key Laboratory of Molecular and Functional Imaging, Department of Radiology, Zhongda Hospital, Medical School, Southeast University, Nanjing, China
| | - Xin-Gui Peng
- Jiangsu Key Laboratory of Molecular and Functional Imaging, Department of Radiology, Zhongda Hospital, Medical School, Southeast University, Nanjing, China
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Huang D, Wanchu R, Cho M, Leon L, Ganti L. Emergency department point-of-care ultrasound diagnosis of active bleeding into the intraluminal thrombus of an abdominal aortic aneurysm. Radiol Case Rep 2023; 18:2116-2120. [PMID: 37089970 PMCID: PMC10113758 DOI: 10.1016/j.radcr.2023.03.002] [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: 02/20/2023] [Revised: 02/27/2023] [Accepted: 03/01/2023] [Indexed: 04/25/2023] Open
Abstract
Rupture of an abdominal aortic aneurysm (AAA) is an immediately life-threatening phenomenon with substantial mortality. Although most AAAs are asymptomatic, an impending AAA rupture can be heralded by nonspecific symptoms and imaging findings on CT and point-of-care ultrasound (POCUS). In this report, we present a case of an 81-year-old male with an atypical presentation of an AAA with novel sonographic findings of imminent rupture on POCUS with Doppler that prompted successful emergent intervention. In the emergency department, imaging findings on aortic POCUS and CT imaging with angiography can facilitate assessment for impending aortic rupture, which can expedite appropriate disposition and potentially life-saving intervention.
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Wazzan M, Abduljabbar A, Ajlan A, Ahmad R, Alhazmi T, Eskandar A, Khashoggi K, Alasadi F, Howladar S, Alshareef Y. Reference Normal Diameters of the Abdominal Aorta and Common Iliac Arteries in the Saudi Population. Cureus 2022; 14:e30695. [PMID: 36439581 PMCID: PMC9692199 DOI: 10.7759/cureus.30695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/26/2022] [Indexed: 11/06/2022] Open
Abstract
The abdominal aorta is the largest artery in the abdomen. It then bifurcates giving the two common iliac arteries. Knowing the normal abdominal aorta diameter is a basis for diagnosing abdominal aortic aneurysms (AAAs) and subsequently developing an optimal management plan. In order to diagnose AAA, one must have a reference for the normal abdominal aortic diameter that represents the anatomical variation in the population being studied. The aim of this research is to establish normal abdominal aortic diameters in the Saudi population.
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Gu G, Zhang X, Shen J, Gulidanna S, Gao Q, Shao J, Liu B, Zhang B, Zheng Y. Comparison of Contrast-Enhanced Ultrasonography to Color Doppler Ultrasound in Evaluation of Carotid Body Tumors. Front Oncol 2022; 12:872890. [PMID: 35480104 PMCID: PMC9035876 DOI: 10.3389/fonc.2022.872890] [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: 02/10/2022] [Accepted: 03/15/2022] [Indexed: 11/13/2022] Open
Abstract
Objective The objectives of this study were to prospectively 1) explore the characteristics and enhanced patterns of carotid body tumors (CBTs) at color Doppler ultrasound (CDU) and contrast-enhanced ultrasonography (CEUS) qualitatively and quantitatively and 2) compare CDU and CEUS for their morphology and vascularity signature. Methods CDU and CEUS with Sonovue® were used to evaluate 25 CBT lesions. The comparison between these ultrasonic modalities included the size, Shamblin type, vascularity, and feeding vessels of the lesion areas. The time–intensity curve (TIC) analysis was used to obtain the dynamics of the contrast-enhancement features of CBTs. Results The TIC analysis presented a fast wash-in [wash-in time: 3.00 ± 1.10 s, mean ± SD] and slow wash-out [wash-out time: 58.79 ± 24.21 s, mean ± SD] pattern in the CBT lesions, with a high area under the curve (AUC) of 669.68 ± 143.46 mm2 (mean ± SD). In comparison with CDU, CEUS was superior in identifying Shamblin type I or III CBT lesions (χ2 = 17.389, p=0.002). It detected a significant difference in the AUC between moderate and marked vascularity groups (563.33 ± 102.63 vs. 707.22 ± 138.81, t=-2.311, p=0.031.), while CDU observed no significant difference between these two groups. Although CDU was more sensitive than CEUS in detecting feeding vessels (100% vs. 88%), CEUS better visualized the origins of feeding vessels (χ2 = 9.162, p=0.010). Conclusion CEUS can better investigate the Shamblin type and vascularity of CBT lesions than CDU. CBTs displayed a fast wash-in, slow wash-out pattern with high AUC in the TIC analysis in the CEUS mode. CDU is more sensitive in detecting feeding vessels than CEUS, while CEUS can better visualize the origins of feeding vessels.
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Affiliation(s)
- Guangchao Gu
- Department of Vascular Surgery, Peking Union Medical College Hospital, Beijing, China
| | - Xiaoyan Zhang
- Department of Diagnostic Ultrasound, Peking Union Medical College Hospital, Beijing, China
| | - Junyue Shen
- Department of Vascular Surgery, Peking Union Medical College Hospital, Beijing, China
- School of Medicine, Tsinghua University, Beijing, China
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Radiation Oncology, Peking University Cancer Hospital & Institute, Beijing, China
| | - Shayan Gulidanna
- Department of Vascular Surgery, Peking Union Medical College Hospital, Beijing, China
- School of Medicine, Tsinghua University, Beijing, China
| | - Qiong Gao
- Department of Diagnostic Ultrasound, Peking Union Medical College Hospital, Beijing, China
| | - Jiang Shao
- Department of Vascular Surgery, Peking Union Medical College Hospital, Beijing, China
| | - Bao Liu
- Department of Vascular Surgery, Peking Union Medical College Hospital, Beijing, China
| | - Bo Zhang
- Department of Diagnostic Ultrasound, Peking Union Medical College Hospital, Beijing, China
- Department of Ultrasound, China-Japan Friendship Hospital, Beijing, China
- *Correspondence: Yuehong Zheng, ; Bo Zhang,
| | - Yuehong Zheng
- Department of Vascular Surgery, Peking Union Medical College Hospital, Beijing, China
- State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
- *Correspondence: Yuehong Zheng, ; Bo Zhang,
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Michels G, Horn R, Helfen A, Hagendorff A, Jung C, Hoffmann B, Jaspers N, Kinkel H, Greim CA, Knebel F, Bauersachs J, Busch HJ, Kiefl D, Spiel AO, Marx G, Dietrich CF. [Standardized contrast-enhanced ultrasound (CEUS) in clinical acute and emergency medicine and critical care (CEUS Acute) : Consensus statement of DGIIN, DIVI, DGINA, DGAI, DGK, ÖGUM, SGUM and DEGUM]. Med Klin Intensivmed Notfmed 2022; 117:1-23. [PMID: 35006320 DOI: 10.1007/s00063-021-00891-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The present document describes the possible applications of contrast-enhanced ultrasound (CEUS) in emergency examinations. Guidelines on contrast medium ultrasound in acute and emergency care and intensive care medicine have not yet been published. Evidence-based CEUS guidelines were first provided by the European Federation of Societies for Ultrasound in Medicine and Biology (EFSUMB) and the World Federation for Ultrasound in Medicine and Biology (WFUMB). The presented recommendations describe the possible applications and protocols of CEUS in acute care.
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Affiliation(s)
- Guido Michels
- Klinik für Akut- und Notfallmedizin, St.-Antonius-Hospital gGmbH, Eschweiler, Deutschland. .,Klinik für Akut- und Notfallmedizin, St.-Antonius-Hospital gGmbH, Akademisches Lehrkrankenhaus der RWTH Aachen, Dechant-Deckers-Str. 8, 52249, Eschweiler, Deutschland.
| | - Rudolf Horn
- Center da sandà Val Müstair, Notfallmedizin, Sta. Maria Val Müstair, Schweiz
| | - Andreas Helfen
- St.-Marien-Hospital Lünen, Medizinische Klinik I, Katholisches Klinikum Lünen Werne GmbH, Lünen, Deutschland
| | - Andreas Hagendorff
- Klinik und Poliklinik für Kardiologie, Universitätsklinikum Leipzig, Leipzig, Deutschland
| | - Christian Jung
- Klinik für Kardiologie, Pneumologie und Angiologie, Universitätsklinikum Düsseldorf, Düsseldorf, Deutschland
| | - Beatrice Hoffmann
- Department of Emergency Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Natalie Jaspers
- Klinik für Gastroenterologie und Hepatologie, Universitätsklinikum Köln, Köln, Deutschland
| | - Horst Kinkel
- Praxis für Gastroenterologie, Düren, Deutschland
| | - Clemens-Alexander Greim
- Klinik für Anästhesiologie, Intensiv- und Notfallmedizin, Klinikum Fulda, Pacelliallee 4, 36043, Fulda, Deutschland
| | - Fabian Knebel
- Klinik für Innere Medizin, Sana Klinikum Lichtenberg, Berlin, Deutschland
| | - Johann Bauersachs
- Klinik für Kardiologie und Angiologie, Medizinische Hochschule Hannover, Hannover, Deutschland
| | - Hans-Jörg Busch
- Universitätsklinikum, Universitäts-Notfallzentrum, Albert-Ludwigs-Universität Freiburg, Freiburg, Deutschland
| | - Daniel Kiefl
- Klinik für Interdisziplinäre Notfallmedizin, Sana Klinikum Offenbach, Offenbach am Main, Deutschland
| | - Alexander O Spiel
- Klinik Ottakring, Zentrale Notaufnahme, Wiener Gesundheitsverbund, Wien, Österreich
| | - Gernot Marx
- Klinik für operative Intensivmedizin, Universitätsklinikum Aachen, Aachen, Deutschland
| | - Christoph F Dietrich
- Department für Allgemeine Innere Medizin Kliniken Hirslanden Beau Site, Salem und Permanence, Bern, Schweiz. .,Department Allgemeine Innere Medizin DAIM, Schänzlihalde 11, 3013, Bern, Schweiz.
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Churchill D, Motaganahalli R, LaRoche T, Ramkaransingh J. A novel approach for treating type II endoleaks utilizing contrast-enhanced ultrasound. JOURNAL OF VASCULAR SURGERY CASES INNOVATIONS AND TECHNIQUES 2021; 7:581-585. [PMID: 34504986 PMCID: PMC8411011 DOI: 10.1016/j.jvscit.2021.05.018] [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: 02/21/2021] [Accepted: 05/29/2021] [Indexed: 12/04/2022]
Abstract
Endoleaks are a frequent and well-known complication after endovascular repair of aortic aneurysms. An endoleak can lead to increased intrasac pressure, sac enlargement, and potential aneurysm rupture. Type II endoleaks result from retrograde filling of aortic branch vessels and can be treated with surgical, endovascular, or direct percutaneous approaches. Direct percutaneous treatment typically involves embolization of the perfused endoleak cavity typically using a translumbar approach with fluoroscopic guidance. We illustrate a novel image-guided approach for percutaneous transabdominal endoleak treatment using contrast-enhanced ultrasound in combination with fluoroscopy.
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Affiliation(s)
- Dennis Churchill
- Division of Interventional Radiology, Department of Radiology, Indiana University School of Medicine, Indianapolis, Ind
| | - Raghu Motaganahalli
- Division of Vascular Surgery, Indiana University School of Medicine, Indianapolis, Ind
- Correspondence: Raghu Motaganahalli, MD, Department of Surgery, Division of Vascular Surgery, Indiana University School of Medicine, 1801 N Senate Blvd, MPC-2 Ste 3500, Indianapolis, IN 46202
| | - Thomas LaRoche
- Division of Interventional Radiology, Department of Radiology, Indiana University School of Medicine, Indianapolis, Ind
- Division of Interventional Radiology, Department of Radiology, Richard L. Roudebush VA Medical Center, Indianapolis, Ind
| | - Jeffrey Ramkaransingh
- Division of Interventional Radiology, Department of Radiology, Indiana University School of Medicine, Indianapolis, Ind
- Division of Interventional Radiology, Department of Radiology, Richard L. Roudebush VA Medical Center, Indianapolis, Ind
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Marschner CA, Geyer T, Froelich MF, Rübenthaler J, Schwarze V, Clevert DA. Diagnostic Value of Contrast-Enhanced Ultrasound for Evaluation of Transjugular Intrahepatic Portosystemic Shunt Perfusion. Diagnostics (Basel) 2021; 11:1593. [PMID: 34573935 PMCID: PMC8472159 DOI: 10.3390/diagnostics11091593] [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: 06/30/2021] [Revised: 08/11/2021] [Accepted: 08/25/2021] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND In patients with liver cirrhosis, transjugular intrahepatic portosystemic shunt (TIPS) displays an effective method for treating portal hypertension. Main indications include refractory ascites and secondary prevention of esophageal bleeding. Color Doppler ultrasound (CDUS) plays a leading role in the follow-up management, whereas contrast-enhanced ultrasound (CEUS) is not routinely considered. We compared the efficacy of CEUS to CDUS and highlighted differences compared to findings of corresponding computed tomography (CT) and magnetic resonance imaging (MRI). (2) Methods: On a retrospective basis, 106 patients with CEUS examination after TIPS were included. The enrollment period was 12 years (between 2008 and 2020) and the age group ranged from 23.3 to 82.1 years. In addition, 92 CDUS, 43 CT and 58 MRI scans were evaluated for intermodal comparison. (3) Results: Intermodal analysis and comparison revealed a high level of concordance between CDUS, CT and MRI in the vast majority of cases. In comparison to CDUS, the correlation of the relevant findings was 92.5%, 95.3% for CT and 87.9% for MRI. In some cases, however, additional information was provided by CEUS (4) Conclusions: CEUS depicts a safe and effective imaging modality for follow-up after TIPS. In addition to CDUS, CEUS enables specific assessment of stent pathologies and stent dysfunction due to its capacity to dynamically visualize single microbubbles at high spatial and temporal resolution. Due to the low number of adverse events regarding the application of contrast agents, CEUS can be administered to a very broad patient population, thus avoiding additional radiation exposure compared to CT angiography in cases with divergent findings during follow-up.
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Affiliation(s)
- Constantin A. Marschner
- Department of Radiology, University Hospital, LMU Munich, 81377 Munich, Germany; (T.G.); (J.R.); (V.S.); (D.-A.C.)
| | - Thomas Geyer
- Department of Radiology, University Hospital, LMU Munich, 81377 Munich, Germany; (T.G.); (J.R.); (V.S.); (D.-A.C.)
| | - Matthias F. Froelich
- Department of Clinical Radiology and Nuclear Medicine, University Medical Centre Mannheim, 68167 Mannheim, Germany;
| | - Johannes Rübenthaler
- Department of Radiology, University Hospital, LMU Munich, 81377 Munich, Germany; (T.G.); (J.R.); (V.S.); (D.-A.C.)
| | - Vincent Schwarze
- Department of Radiology, University Hospital, LMU Munich, 81377 Munich, Germany; (T.G.); (J.R.); (V.S.); (D.-A.C.)
| | - Dirk-André Clevert
- Department of Radiology, University Hospital, LMU Munich, 81377 Munich, Germany; (T.G.); (J.R.); (V.S.); (D.-A.C.)
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Paul G, Michels G, Hohmann C, Pfister R, Mader N, Blanke L, Ohler M, Piepenbrock E, Rybniker J, Lehmann C, Fätkenheuer G, Jaspers N, Jung N. Contrast-Enhanced Ultrasound for the Detection of Abdominal Complications in Infective Endocarditis: First Experience From a Prospective Cohort. ULTRASOUND IN MEDICINE & BIOLOGY 2020; 46:2965-2971. [PMID: 32861503 DOI: 10.1016/j.ultrasmedbio.2020.07.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 06/11/2020] [Accepted: 07/30/2020] [Indexed: 06/11/2023]
Abstract
Embolic events are associated with increased mortality in patients with infective endocarditis (IE). The goal of this study was to gain experience with the application of contrast-enhanced ultrasound (CEUS) in IE to detect abdominal complications. CEUS was performed in 40 patients from a prospective register of IE. CEUS was able to detect abdominal embolic events or metastatic infection in 12 patients (30%). Most commonly seen were splenic infarctions (n = 10), followed by renal infarction (n = 2), liver abscess (n = 1) and mycotic aneurysm (n = 1). Six out of 14 lesions were only detected by CEUS and not by conventional ultrasound. Abdominal complications revealed by CEUS were associated with a detectable valve vegetation (p = 0.04) and larger vegetation size (p = 0.01). In three patients, a non-IE related abdominal lesion (two hepatocellular carcinomas, one psoas hematoma) was detected. CEUS is a feasible diagnostic method in detection of abdominal complications of IE.
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Affiliation(s)
- Gregor Paul
- University of Cologne, Department I of Internal Medicine, Division of Infectious Diseases, Cologne, Germany; Department of Gastroenterology, Hepatology, Pneumology and Infectious Diseases, Katharinenhospital, Klinikum Stuttgart, Stuttgart, Germany.
| | - Guido Michels
- University of Cologne, Department III of Internal Medicine, Cologne, Germany
| | - Christopher Hohmann
- University of Cologne, Department III of Internal Medicine, Cologne, Germany
| | - Roman Pfister
- University of Cologne, Department III of Internal Medicine, Cologne, Germany
| | - Navid Mader
- University of Cologne, Department of Cardiothoracic Surgery, Cologne, Germany
| | - Lara Blanke
- University of Cologne, Department I of Internal Medicine, Division of Infectious Diseases, Cologne, Germany
| | - Myriam Ohler
- University of Cologne, Department I of Internal Medicine, Division of Infectious Diseases, Cologne, Germany
| | - Ellen Piepenbrock
- University of Cologne, Institute for Medical Microbiology, Immunology and Hygiene, Cologne, Germany
| | - Jan Rybniker
- University of Cologne, Department I of Internal Medicine, Division of Infectious Diseases, Cologne, Germany; German Center for Infection Research (DZIF), Bonn-Cologne, Cologne, Germany
| | - Clara Lehmann
- University of Cologne, Department I of Internal Medicine, Division of Infectious Diseases, Cologne, Germany; German Center for Infection Research (DZIF), Bonn-Cologne, Cologne, Germany
| | - Gerd Fätkenheuer
- University of Cologne, Department I of Internal Medicine, Division of Infectious Diseases, Cologne, Germany; German Center for Infection Research (DZIF), Bonn-Cologne, Cologne, Germany
| | - Natalie Jaspers
- University of Cologne, Department of Gastroenterology and Hepatology, University Hospital of Cologne, Cologne, Germany
| | - Norma Jung
- University of Cologne, Department I of Internal Medicine, Division of Infectious Diseases, Cologne, Germany
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Zhuang Z, Fan G, Yuan Y, Joseph Raj AN, Qiu S. A fuzzy clustering based color-coded diagram for effective illustration of blood perfusion parameters in contrast-enhanced ultrasound videos. COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 2020; 190:105233. [PMID: 31796224 DOI: 10.1016/j.cmpb.2019.105233] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2019] [Revised: 11/13/2019] [Accepted: 11/18/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND AND OBJECTIVE Early identification and diagnosis of tumors are of great significance to improve the survival rate of patients. Amongst other techniques, contrast-enhanced ultrasound is an important means to help doctors diagnose tumors. Due to the advantages of high efficiency, accuracy and objectivity, more and more computer-aided methods are used in medical diagnosis. Here we propose, a color-coded diagram based on quantitative blood perfusion parameters for contrast-enhanced ultrasound video. The method realizes the static description of the dynamic blood perfusion process in contrast-enhanced ultrasound videos and reveal the blood perfusion characteristics of all regions of the tissue providing assistance to the doctors in their clinical diagnosis. METHODS For effective illustration of the blood perfusion through tissues, we propose (a) an improved block matching algorithm to eliminate the image distortions caused by breathing; (b) compute the time-grayscale intensity curve for each pixel to obtain four different quantitative blood perfusion parameters; and finally (c) employ the fuzzy C-means clustering algorithm to cluster the blood perfusion parameters, where each parameter is associated with a particular color. Thus based on the correspondence between the pixel and the blood perfusion parameters, all the pixels are color-coded to obtain the color-coded diagram. RESULTS To the best of our knowledge, the proposed technique is one-of-its-kind to color code the contrast-enhanced ultrasound videos using blood perfusion parameters in order to understand the hemodynamic characteristics of the benign and malignant lesion. In our experiments, various contrast-enhanced ultrasound videos corresponding to several real-world cases were color-coded and the results of the experiments illustrated that the proposed color-coded diagrams are consistent with the diagnosis presented by the physicians. CONCLUSIONS The experimental results suggested that the proposed method can comprehensively describe the blood perfusion characteristics of tissues during the angiography process thereby effectively assisting the doctors in diagnosis.
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Affiliation(s)
- Zhemin Zhuang
- Department of Electronic Engineering, Shantou University, Shantou, Guangdong, China; Guangdong Provincial Key Laboratory of Digital Signal and Image Processing, Shantou University, Shantou, Guangdong, China
| | - Guangwen Fan
- Department of Electronic Engineering, Shantou University, Shantou, Guangdong, China
| | - Ye Yuan
- Department of Electronic Engineering, Shantou University, Shantou, Guangdong, China; Guangdong Provincial Key Laboratory of Digital Signal and Image Processing, Shantou University, Shantou, Guangdong, China
| | - Alex Noel Joseph Raj
- Department of Electronic Engineering, Shantou University, Shantou, Guangdong, China; Guangdong Provincial Key Laboratory of Digital Signal and Image Processing, Shantou University, Shantou, Guangdong, China.
| | - Shunmin Qiu
- Imaging Department, First Hospital of Medical College of Shantou University, Shantou, Guangdong, China
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Wang Y, Jiang C, Huang H, Liu N, Wang Y, Chen Z, Liang S, Wu M, Jiang Y, Wang X, Zhou T, Chen H, Zhang L, Li H. Correlation of Cerebral White Matter Lesions with Carotid Intraplaque Neovascularization assessed by Contrast-enhanced Ultrasound. J Stroke Cerebrovasc Dis 2020; 29:104928. [PMID: 32689582 DOI: 10.1016/j.jstrokecerebrovasdis.2020.104928] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 04/27/2020] [Accepted: 04/29/2020] [Indexed: 12/13/2022] Open
Abstract
PURPOSE Carotid atherosclerotic plaque is closely associated with cerebral white matter lesions (WMLs), while intraplaque neovascularization (IPN) contributes significantly to arterial remodeling and plaque vulnerability. In this study, we aim to evaluate the correlation of carotid IPN with cerebral WMLs. METHODS The presence of IPN and WMLs were assessed by contrast-enhanced ultrasound (CEUS) and MRI respectively. IPN was evaluated utilizing semi-quantification visual grading scale and WMLs was divided according to Fazekas grading scale. We investigated the baseline data, Fazekas grades, and IPN grades among 269 participants. We explored the influences of each variable on Fazekas grades using ordinal logistic regression and evaluated the relationship between IPN grades and WMLs Fazekas grades. RESULTS Increased age (OR: 1.06, P<0.001), hypertension (OR: 2.17, P=0.002), cerebral infarction (OR: 1.74, P=0.046), and elevated carotid IPN grading were significantly associated with aggravated Fazekas grades (grade 2 or 3). To be specific, people having grade 3, 2, and 1 carotid IPN were 25.84 (P<0.001), 10.64 (P<0.001), and 5.96 (P=0.010) times as likely to have elevated Fazekas grades compared with those who having grade 0 carotid IPN. CONCLUSION Increased carotid IPN is independently correlated with aggravated cerebral WMLs.
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Affiliation(s)
- Yuxuan Wang
- Department of Neurology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China; First Clinical Medical School, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China; Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, China.
| | - Chao Jiang
- Department of Public Health, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Hui Huang
- Department of Ultrasound, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Niu Liu
- Department of Ultrasound, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Yi Wang
- Department of Neurosurgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Zhaoyao Chen
- Department of Neurology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Sen Liang
- Department of Neurology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Minghua Wu
- Department of Neurology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Yajun Jiang
- Department of Neurology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Xiaoxiao Wang
- GCP Center, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Tingting Zhou
- Department of Neurology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China; First Clinical Medical School, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Hu Chen
- Department of Radiology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Lin Zhang
- Department of Neurology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China; First Clinical Medical School, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China.
| | - Hui Li
- Department of Neurology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China; First Clinical Medical School, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China.
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Lauri C, Iezzi R, Rossi M, Tinelli G, Sica S, Signore A, Posa A, Tanzilli A, Panzera C, Taurino M, Erba PA, Tshomba Y. Imaging Modalities for the Diagnosis of Vascular Graft Infections: A Consensus Paper amongst Different Specialists. J Clin Med 2020; 9:jcm9051510. [PMID: 32429584 PMCID: PMC7290746 DOI: 10.3390/jcm9051510] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Revised: 05/14/2020] [Accepted: 05/15/2020] [Indexed: 12/18/2022] Open
Abstract
Vascular graft infection (VGI) is a rare but severe complication of vascular surgery that is associated with a bad prognosis and high mortality rate. An accurate and prompt identification of the infection and its extent is crucial for the correct management of the patient. However, standardized diagnostic algorithms and a univocal consensus on the best strategy to reach a diagnosis still do not exist. This review aims to summarize different radiological and Nuclear Medicine (NM) modalities commonly adopted for the imaging of VGI. Moreover, we attempt to provide evidence-based answers to several practical questions raised by clinicians and surgeons when they approach imaging in order to plan the most appropriate radiological or NM examination for their patients.
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Affiliation(s)
- Chiara Lauri
- Nuclear Medicine Unit, Department of Medical-Surgical Sciences and of Translational Medicine, “Sapienza” University of Rome, 00161 Rome, Italy;
- Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, 9700 Groningen, The Netherlands;
- Correspondence: ; Tel.: +39-06-3377-6191
| | - Roberto Iezzi
- Radiology Unit, Fondazione Policlinico Universitario A. Gemelli IRCCS, Roma-Università Cattolica del Sacro Cuore, 00168 Rome, Italy; (R.I.); (A.P.); (A.T.)
| | - Michele Rossi
- Radiology Unit, Department of Medical-Surgical Sciences and Translational Medicine, Faculty of Medicine and Psychology, Sant’Andrea Hospital, “Sapienza” University of Rome, 00161 Rome, Italy;
| | - Giovanni Tinelli
- Unit of Vascular Surgery, Fondazione Policlinico Universitario Gemelli IRCCS, Roma-Università Cattolica del Sacro Cuore, 00168 Rome, Italy; (G.T.); (S.S.); (Y.T.)
| | - Simona Sica
- Unit of Vascular Surgery, Fondazione Policlinico Universitario Gemelli IRCCS, Roma-Università Cattolica del Sacro Cuore, 00168 Rome, Italy; (G.T.); (S.S.); (Y.T.)
| | - Alberto Signore
- Nuclear Medicine Unit, Department of Medical-Surgical Sciences and of Translational Medicine, “Sapienza” University of Rome, 00161 Rome, Italy;
- Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, 9700 Groningen, The Netherlands;
| | - Alessandro Posa
- Radiology Unit, Fondazione Policlinico Universitario A. Gemelli IRCCS, Roma-Università Cattolica del Sacro Cuore, 00168 Rome, Italy; (R.I.); (A.P.); (A.T.)
| | - Alessandro Tanzilli
- Radiology Unit, Fondazione Policlinico Universitario A. Gemelli IRCCS, Roma-Università Cattolica del Sacro Cuore, 00168 Rome, Italy; (R.I.); (A.P.); (A.T.)
| | - Chiara Panzera
- Vascular Surgery Unit, Department of Clinical and Molecular Medicine, Faculty of Medicine and Psychology, Sant’Andrea Hospital, “Sapienza” University of Rome, 00161 Rome, Italy; (C.P.); (M.T.)
| | - Maurizio Taurino
- Vascular Surgery Unit, Department of Clinical and Molecular Medicine, Faculty of Medicine and Psychology, Sant’Andrea Hospital, “Sapienza” University of Rome, 00161 Rome, Italy; (C.P.); (M.T.)
| | - Paola Anna Erba
- Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, 9700 Groningen, The Netherlands;
- Nuclear Medicine, Department of Translational Research and New Technology in Medicine, University of Pisa, 56123 Pisa, Italy
| | - Yamume Tshomba
- Unit of Vascular Surgery, Fondazione Policlinico Universitario Gemelli IRCCS, Roma-Università Cattolica del Sacro Cuore, 00168 Rome, Italy; (G.T.); (S.S.); (Y.T.)
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Thakrar DB, Sultan MJ. The Role of Contrast-Enhanced Ultrasound in Managing Vascular Pathologies. J Med Imaging Radiat Sci 2019; 50:590-595. [PMID: 31706878 DOI: 10.1016/j.jmir.2019.08.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Revised: 07/24/2019] [Accepted: 08/08/2019] [Indexed: 11/15/2022]
Abstract
INTRODUCTION Ultrasound is a useful first-line imaging modality for diagnosing and monitoring vascular pathologies. Compared with other modalities, it is relatively low cost, requires no ionizing radiation, is often available at bedside, and is noninvasive. However, the modality can have limitations when differentiating normal from pathologic tissues. In this review, we discuss the role of contrast-enhanced ultrasound (CEUS) in carotid, aortic, and peripheral vascular conditions. DISCUSSION CEUS is a developing modality that supersedes standard vascular ultrasound imaging and complements other modalities such as computed topography and magnetic resonance angiograms. Administered intravenously, the contrast are microbubbles filled with gas, surrounded by a stabilizing shell. They have the ability to enhance the quality of images and quantify vascular pathologies by acting as intravascular tracers of ultrasound energy. Based on these properties, CEUS has the potential to play a pivotal role in the management of vascular pathologies through its utility in detection, diagnosis, risk-stratification, follow-up, and monitoring. CONCLUSION Studies have suggested that CEUS is superior compared with standard ultrasound and on-par with computed topography angiograms in the detection of vascular pathologies, concluding that CEUS should be part of standardized routine practice.
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Affiliation(s)
- Dixa B Thakrar
- Department of Vascular Surgery, Hull University Teaching Hospitals NHS Trust, Hull, UK
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Rogers S, Lowe C, Carreira J, McCollum C, Ghosh J. Comparison of Contrast-Enhanced Tomographic 3-D Ultrasound Against Rotational Angiography Imaging Immediately After Endovascular Aneurysm Repair. ULTRASOUND IN MEDICINE & BIOLOGY 2019; 45:2356-2362. [PMID: 31253465 DOI: 10.1016/j.ultrasmedbio.2019.05.030] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 05/09/2019] [Accepted: 05/28/2019] [Indexed: 06/09/2023]
Abstract
This proof of principle study assesses the utility of contrast-enhance ultrasound (CEUS) and contrast-enhanced tomographic 3-D ultrasound (CEtUS), as an intra-procedural imaging tool after endovascular-aneurysm repair (EVAR), compared with rotational angiography. A total of 20 consecutive patients undergoing infra-renal EVAR underwent immediate post-deployment rotational angiography, followed by CEUS and CEtUS scans. Outcomes were presence of endoleak, renal artery patency and endograft deformity. CEUS and CEtUS detected 12 endoleaks, 8 of which were not detected by rotational angiography. CEUS and CEtUS classify 7 or 8 type IIb endoleaks not detected by rotational angiography. CEUS/CEtUS could not identify 12 and 13 renal arteries, respectively, detected by rotational angiography. Rotational angiography and CEtUS both identified 1 endograft limb deformity, corrected immediately. CEUS and CEtUS are more sensitive to type II endoleak than rotational angiography, although there is a lower detection of renal arteries. CEUS or CEtUS has the utility for immediate post-EVAR endoleak detection where reduction of contrast agent is indicated.
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Affiliation(s)
- Steven Rogers
- Academic Surgery Unit, Division of Cardiovascular Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Wythenshawe Hospital, Wythenshawe, Manchester, UK; Department of Vascular and Endovascular Surgery, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK; Independent Vascular Services Ltd, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Wythenshawe, Manchester, UK.
| | - Christopher Lowe
- Academic Surgery Unit, Division of Cardiovascular Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Wythenshawe Hospital, Wythenshawe, Manchester, UK
| | - Joao Carreira
- Independent Vascular Services Ltd, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Wythenshawe, Manchester, UK
| | - Charles McCollum
- Academic Surgery Unit, Division of Cardiovascular Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Wythenshawe Hospital, Wythenshawe, Manchester, UK; Department of Vascular and Endovascular Surgery, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - Jonathan Ghosh
- Department of Vascular and Endovascular Surgery, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
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Management of abdominal aortic prosthetic graft and endograft infections. A multidisciplinary update. J Infect Chemother 2019; 25:669-680. [DOI: 10.1016/j.jiac.2019.05.013] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 05/16/2019] [Indexed: 12/15/2022]
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Rafailidis V, Huang DY, Yusuf GT, Sidhu PS. General principles and overview of vascular contrast-enhanced ultrasonography. Ultrasonography 2019; 39:22-42. [PMID: 31671927 PMCID: PMC6920620 DOI: 10.14366/usg.19022] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Accepted: 06/25/2019] [Indexed: 12/18/2022] Open
Abstract
Ultrasonography (US) is the first-line modality for the evaluation of vascular pathology. Although well-established for many diseases, US has inherent limitations that can occasionally hinder an accurate diagnosis. The value of US was improved by the introduction of microbubbles as ultrasonographic contrast agents (UCAs) and the emergence of contrast-enhanced ultrasonography (CEUS), following the introduction of second-generation UCAs and the emergence of modern contrast-specific techniques. CEUS offers valuable information about vascular disease, both on a macrovascular and a microvascular level, with well-established applications for carotid disease, post-interventional follow-up of abdominal aortic aneurysms, and the assessment of portal vein thrombosis. The purpose of this review is to discuss the principles of CEUS and to present an overview of its vascular applications.
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Affiliation(s)
- Vasileios Rafailidis
- Department of Radiology, King's College London, King's College Hospital, London, UK
| | - Dean Y Huang
- Department of Radiology, King's College London, King's College Hospital, London, UK
| | - Gibran Timothy Yusuf
- Department of Radiology, King's College London, King's College Hospital, London, UK
| | - Paul S Sidhu
- Department of Radiology, King's College London, King's College Hospital, London, UK
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Kalisz K, Partovi S. Diffusion-weighted MR in chronic periaortitis, a new technique has entered the clinical arena. Int J Cardiovasc Imaging 2018; 34:1787-1788. [DOI: 10.1007/s10554-018-1458-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Accepted: 09/17/2018] [Indexed: 10/28/2022]
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Li X, Staub D, Rafailidis V, Al-Natour M, Kalva S, Partovi S. Contrast-enhanced ultrasound of the abdominal aorta - current status and future perspectives. VASA 2018; 48:115-125. [PMID: 30324867 DOI: 10.1024/0301-1526/a000749] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Ultrasound has been established as an important diagnostic tool in assessing vascular abnormalities. Standard B-mode and Doppler techniques have inherent limitations with regards to detection of slow flow and small vasculature. Contrast-enhanced ultrasound (CEUS) is a complementary tool and is useful in assessing both the macro- and microvascular anatomy of the aorta. CEUS can also provide valuable physiological information in real-time scanning sessions due to the physical and safety profiles of the administered microbubbles. From a macrovascular perspective, CEUS has been used to characterize aortic aneurysm rupture, dissection and endoleaks post-EVAR repair. With regard to microvasculature CEUS enables imaging of adventitial vasa vasorum thereby assessing aortic inflammation processes, such as monitoring treatment response in chronic periaortitis. CEUS may have additional clinical utility since adventitial vasa vasorum has important implications in the pathogenesis of aortic diseases. In recent years, there have been an increasing number of studies comparing CEUS to cross-sectional imaging for aortic applications. For endoleak surveillance CEUS has been shown to be equal or in certain cases superior in comparison to CT angiography. The recent advancement of CEUS software along with the ongoing development of drug-eluting contrast microbubbles has allowed improved targeted detection and real-time ultrasound guided therapy for aortic vasa vasorum inflammation and neovascularization in animal models. Therefore, CEUS is uniquely suited to comprehensively assess and potentially treat aortic vascular diseases in the future.
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Affiliation(s)
- Xin Li
- 1 Department of Radiology, University Hospital Cleveland Medical Center, Case Western Reserve University, Cleveland, Ohio, USA
| | - Daniel Staub
- 2 Angiology, University Hospital Basel and University of Basel, Basel, Switzerland
| | - Vasileios Rafailidis
- 3 AHEPA University Hospital of Thessaloniki, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Mohammed Al-Natour
- 1 Department of Radiology, University Hospital Cleveland Medical Center, Case Western Reserve University, Cleveland, Ohio, USA
| | - Sanjeeva Kalva
- 4 Department of Radiology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Sasan Partovi
- 5 Section of Interventional Radiology, Department of Radiology, Cleveland Clinic Foundation, Cleveland, Ohio, USA
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