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Kitagawa K, Nakamura S, Ota H, Ogawa R, Shizuka T, Kubo T, Yi Y, Ito T, Nagasawa N, Omori T, Nakamori S, Kurita T, Sugisawa J, Hatori N, Nakashima H, Wang Y, Kido T, Watanabe K, Matsumoto Y, Dohi K, Sakuma H. Diagnostic Performance of Dynamic Myocardial Perfusion Imaging Using Dual-Source Computed Tomography. J Am Coll Cardiol 2021; 78:1937-1949. [PMID: 34763770 DOI: 10.1016/j.jacc.2021.08.067] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 08/05/2021] [Accepted: 08/25/2021] [Indexed: 02/02/2023]
Abstract
BACKGROUND Single-center studies indicated a high diagnostic accuracy of dynamic computed tomography perfusion (CTP) imaging in the diagnosis of coronary artery disease (CAD). OBJECTIVES This prospective multicenter study determined the diagnostic performance of combined coronary computed tomography angiography (CTA) and CTP for detecting hemodynamically significant CAD defined by invasive coronary angiography (ICA) with fractional flow reserve (FFR). METHODS Seven centers enrolled 174 patients with suspected or known CAD who were clinically referred for ICA. CTA and dynamic CTP were performed using dual-source CT before ICA. FFR was done as part of ICA in the case of 26% to 90% coronary diameter stenosis. Hemodynamically significant stenosis was defined as FFR of <0.8 or >90% stenosis on ICA. RESULTS The study protocol was completed in 157 participants, and hemodynamically significant stenosis was detected in 76 of 157 patients (48%) and 112 of 442 vessels (25%). According to receiver-operating characteristic curve analysis, adding dynamic CTP to CTA significantly increased the area under the curve from 0.65 (95% CI: 0.57-0.72) to 0.74 (95% CI: 0.66-0.81; P = 0.011) on the patient level, with decreased sensitivity (93% vs 72%; P < 0.001), improved specificity (36% vs 75%; P < 0.001), and improved overall accuracy (64% vs 74%; P < 0.001). CONCLUSIONS In this prospective multicenter study on dynamic CTP, the combination of anatomic assessment with coronary CTA and functional evaluation with dynamic CTP allowed more accurate identification of hemodynamically significant CAD compared with CTA alone. However, the clinical significance of this approach needs to be further investigated, including its usefulness in improving prognosis. (Assessment of Myocardial Perfusion Linked to Infarction and Fibrosis Explored With Dual-Source CT [AMPLIFiED]; UMIN000016353).
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Affiliation(s)
- Kakuya Kitagawa
- Department of Advanced Diagnostic Imaging, Mie University Graduate School of Medicine, Tsu, Japan.
| | | | - Hideki Ota
- Department of Diagnostic Radiology, Tohoku University Hospital, Sendai, Japan
| | - Ryo Ogawa
- Department of Radiology, Ehime University Graduate School of Medicine, Matsuyama, Japan
| | - Takehito Shizuka
- Department of Cardiology, National Hospital Organization Takasaki General Medical Center, Takasaki, Japan
| | - Tadahiro Kubo
- Department of Cardiovascular Medicine, National Hospital Organization Kagoshima Medical Center, Kagoshima, Japan
| | - Yan Yi
- Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Tatsuro Ito
- Department of Cardiovascular Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Naoki Nagasawa
- Department of Radiology, Mie University Hospital, Tsu, Japan
| | - Taku Omori
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Shiro Nakamori
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Tairo Kurita
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Jun Sugisawa
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Naoki Hatori
- Department of Cardiology, National Hospital Organization Takasaki General Medical Center, Takasaki, Japan
| | - Hitoshi Nakashima
- Department of Cardiovascular Medicine, National Hospital Organization Kagoshima Medical Center, Kagoshima, Japan
| | - Yining Wang
- Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Teruhito Kido
- Department of Radiology, Ehime University Graduate School of Medicine, Matsuyama, Japan
| | - Kouki Watanabe
- Division of Cardiology, Saiseikai Matsuyama Hospital, Matsuyama, Japan
| | - Yasuharu Matsumoto
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan; Department of Cardiovascular Medicine, Shioya Hospital, International University of Health and Welfare, Yaita, Japan
| | - Kaoru Dohi
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Hajime Sakuma
- Department of Radiology, Mie University Graduate School of Medicine, Tsu, Japan
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El Mahdiui M, Smit JM, van Rosendael AR, Jukema JW, Bax JJ, Scholte AJHA. Relationship between coronary artery calcification and myocardial ischemia on computed tomography myocardial perfusion in patients with stable chest pain. J Nucl Cardiol 2021; 28:1707-1714. [PMID: 31529386 PMCID: PMC8421270 DOI: 10.1007/s12350-019-01869-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 08/14/2019] [Indexed: 12/22/2022]
Abstract
BACKGROUND Coronary artery calcium (CAC) score has shown to provide incremental prognostic information when added to the Framingham risk score. Although the relation between CAC and myocardial ischemia has been evaluated, there has been little evaluation of the relationship between CAC score and inducible myocardial ischemia on computed tomography myocardial perfusion (CTP). METHODS AND RESULTS Patients who were referred with stable chest pain from the outpatient clinic and who underwent non-contrast computed tomography scan, coronary computed tomography angiography, and adenosine stress CTP were included in this study. CAC score was subdivided in four groups (1 to 99; 100 to 399, 400 to 999, and ≥ 1000). Inducible myocardial ischemia was considered when reversible perfusion defects were observed in ≥ 1 segment. A total of 131 patients (age 62 ± 9.4 years; 56% male) were included. The median CAC score was 241 (73 to 539). Forty-nine patients (37%) had evidence of inducible myocardial ischemia. The presence of inducible myocardial ischemia increased with increasing CAC score from 22% in the CAC score 1 to 99 subgroup to 35, 47, and 65% in the 100 to 399, 400 to 999, and ≥ 1000 CAC score subgroup, respectively. In multivariable analysis CAC score was the only determinant that significantly predicted the presence of inducible myocardial ischemia on CTP. CONCLUSIONS In a population of symptomatic patients, the majority of patients with extensive calcification had evidence of inducible myocardial ischemia on CTP. CAC score was the only independent predictor of inducible myocardial ischemia on CTP.
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Affiliation(s)
- Mohammed El Mahdiui
- Department of Cardiology, Heart Lung Center, Leiden University Medical Center, Albinusdreef 2, 2300 RC, Leiden, The Netherlands
| | - Jeff M Smit
- Department of Cardiology, Heart Lung Center, Leiden University Medical Center, Albinusdreef 2, 2300 RC, Leiden, The Netherlands
| | - Alexander R van Rosendael
- Department of Cardiology, Heart Lung Center, Leiden University Medical Center, Albinusdreef 2, 2300 RC, Leiden, The Netherlands
| | - J Wouter Jukema
- Department of Cardiology, Heart Lung Center, Leiden University Medical Center, Albinusdreef 2, 2300 RC, Leiden, The Netherlands
| | - Jeroen J Bax
- Department of Cardiology, Heart Lung Center, Leiden University Medical Center, Albinusdreef 2, 2300 RC, Leiden, The Netherlands
| | - Arthur J H A Scholte
- Department of Cardiology, Heart Lung Center, Leiden University Medical Center, Albinusdreef 2, 2300 RC, Leiden, The Netherlands.
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Kang EJ. Clinical Applications of Wide-Detector CT Scanners for Cardiothoracic Imaging: An Update. Korean J Radiol 2020; 20:1583-1596. [PMID: 31854147 PMCID: PMC6923215 DOI: 10.3348/kjr.2019.0327] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 07/23/2019] [Indexed: 12/21/2022] Open
Abstract
Technical developments in multidetector computed tomography (CT) have increased the number of detector rows on the z-axis, and 16-cm wide-area-coverage CT scanners have enabled volumetric scanning of the entire heart. Beyond coronary arterial imaging, such innovations offer several advantages during clinical imaging in the cardiothoracic area. The wide-detector CT scanner markedly reduces the image acquisition time to less than 1 second for coronary CT angiography, thereby decreasing the volume of contrast material and radiation dose required for the examination. It also eliminates stair-step artifacts, allowing robust improvements in myocardial function and perfusion imaging. Additionally, new imaging techniques for the cardiothoracic area, including subtraction imaging and free-breathing scans, have been developed and further improved by using the wide-detector CT scanner. This article investigates the technical developments in wide-detector CT scanners, summarizes their clinical applications in the cardiothoracic area, and provides a review of the recent literature.
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Affiliation(s)
- Eun Ju Kang
- Department of Radiology, College of Medicine, Dong-A University, Busan, Korea.
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Popescu BA, Petersen SE, Maurovich-Horvat P, Haugaa KH, Donal E, Maurer G, Edvardsen T. The year 2017 in the European Heart Journal-Cardiovascular Imaging: Part I. Eur Heart J Cardiovasc Imaging 2019; 19:1099-1106. [PMID: 30085023 DOI: 10.1093/ehjci/jey109] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Accepted: 07/11/2018] [Indexed: 02/06/2023] Open
Abstract
The European Heart Journal - Cardiovascular Imaging was launched in 2012. It has gained an impressive impact factor of 8.336 during its first 6 years and is now established as one of the top 10 cardiovascular journals in the world and the most important cardiovascular imaging journal in Europe. The most important studies published in the journal in 2017 will be highlighted in two reports. Part I will focus on studies about myocardial function, coronary artery disease and myocardial ischaemia, and emerging techniques and applications in cardiovascular imaging, whereas Part II will focus on valvular heart disease, heart failure, cardiomyopathies, and congenital heart disease.
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Affiliation(s)
- Bogdan A Popescu
- Department of Cardiology, University of Medicine and Pharmacy "Carol Davila"-Euroecolab, Emergency Institute of Cardiovascular Diseases "Prof. Dr. C. C. Iliescu", Sos. Fundeni 258, Sector 2, Bucharest, Romania
| | - Steffen E Petersen
- William Harvey Research Institute, NIHR Barts Biomedical Research Centre, Queen Mary University of London, Charterhouse Square, London, UK.,Barts Heart Centre, St Bartholomew's Hospital, Barts Health NHS Trust, West Smithfield, London, UK
| | - Pál Maurovich-Horvat
- MTA-SE Cardiovascular Imaging Research Group (CIRG), Heart and Vascular Center, Semmelweis University, Varosmajor u.68, Budapest, Hungary
| | - Kristina H Haugaa
- Department of Cardiology, Centre of Cardiological Innovation, Oslo University Hospital, Rikshospitalet, Sognsvannsveien 20, NO-0027 Oslo, Norway.,Institute for Clinical Medicine, University of Oslo, Sognsvannsveien 20, NO-0027 Oslo, Norway
| | - Erwan Donal
- Cardiology and CIC-IT1414, CHU Rennes, Rennes, France and LTSI INSERM 1099, University Rennes-1, Rennes, France
| | - Gerald Maurer
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, Spitalgasse 23, Wien, Austria
| | - Thor Edvardsen
- Department of Cardiology, Centre of Cardiological Innovation, Oslo University Hospital, Rikshospitalet, Sognsvannsveien 20, NO-0027 Oslo, Norway.,Institute for Clinical Medicine, University of Oslo, Sognsvannsveien 20, NO-0027 Oslo, Norway
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Fusion of Three-Dimensional Echocardiographic Regional Myocardial Strain with Cardiac Computed Tomography for Noninvasive Evaluation of the Hemodynamic Impact of Coronary Stenosis in Patients with Chest Pain. J Am Soc Echocardiogr 2018; 31:664-673. [PMID: 29576220 DOI: 10.1016/j.echo.2018.01.019] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Indexed: 12/31/2022]
Abstract
BACKGROUND Combined evaluation of coronary stenosis and the extent of ischemia is essential in patients with chest pain. Intermediate-grade stenosis on computed tomographic coronary angiography (CTCA) frequently triggers downstream nuclear stress testing. Alternative approaches without stress and/or radiation may have important implications. Myocardial strain measured from echocardiographic images can be used to detect subclinical dysfunction. The authors recently tested the feasibility of fusion of three-dimensional (3D) echocardiography-derived regional resting longitudinal strain with coronary arteries from CTCA to determine the hemodynamic significance of stenosis. The aim of the present study was to validate this approach against accepted reference techniques. METHODS Seventy-eight patients with chest pain referred for CTCA who also underwent 3D echocardiography and regadenoson stress computed tomography were prospectively studied. Left ventricular longitudinal strain data (TomTec) were used to generate fused 3D displays and detect resting strain abnormalities (RSAs) in each coronary territory. Computed tomographic coronary angiographic images were interpreted for the presence and severity of stenosis. Fused 3D displays of subendocardial x-ray attenuation were created to detect stress perfusion defects (SPDs). In patients with stenosis >25% in at least one artery, fractional flow reserve was quantified (HeartFlow). RSA as a marker of significant stenosis was validated against two different combined references: stenosis >50% on CTCA and SPDs seen in the same territory (reference standard A) and fractional flow reserve < 0.80 and SPDs in the same territory (reference standard B). RESULTS Of the 99 arteries with no stenosis >50% and no SPDs, considered as normal, 19 (19%) had RSAs. Conversely, with stenosis >50% and SPDs, RSAs were considerably more frequent (17 of 24 [71%]). The sensitivity, specificity, and accuracy of RSA were 0.71, 0.81, and 0.79, respectively, against reference standard A and 0.83, 0.81, and 0.82 against reference standard B. CONCLUSIONS Fusion of CTCA and 3D echocardiography-derived resting myocardial strain provides combined displays, which may be useful in determination of the hemodynamic or functional impact of coronary abnormalities, without additional ionizing radiation or stress testing.
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Kitagawa K, Goto Y, Nakamura S, Takafuji M, Hamdy A, Ishida M, Sakuma H. Dynamic CT Perfusion Imaging: State of the Art. ACTA ACUST UNITED AC 2018. [DOI: 10.22468/cvia.2018.00031] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Kakuya Kitagawa
- Department of Radiology, Mie University School of Medicine, Tsu, Japan
| | - Yoshitaka Goto
- Department of Radiology, Mie University School of Medicine, Tsu, Japan
| | - Satoshi Nakamura
- Department of Radiology, Mie University School of Medicine, Tsu, Japan
| | - Masafumi Takafuji
- Department of Radiology, Mie University School of Medicine, Tsu, Japan
| | - Ahmed Hamdy
- Department of Radiology, Mie University School of Medicine, Tsu, Japan
| | - Masaki Ishida
- Department of Radiology, Mie University School of Medicine, Tsu, Japan
| | - Hajime Sakuma
- Department of Radiology, Mie University School of Medicine, Tsu, Japan
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Schuijf JD, Ko BS, Di Carli MF, Hislop-Jambrich J, Ihdayhid AR, Seneviratne SK, Lima JAC. Fractional flow reserve and myocardial perfusion by computed tomography: a guide to clinical application. Eur Heart J Cardiovasc Imaging 2017; 19:127-135. [DOI: 10.1093/ehjci/jex240] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Accepted: 09/21/2017] [Indexed: 12/13/2022] Open
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Cademartiri F, Seitun S, Clemente A, La Grutta L, Toia P, Runza G, Midiri M, Maffei E. Myocardial blood flow quantification for evaluation of coronary artery disease by computed tomography. Cardiovasc Diagn Ther 2017; 7:129-150. [PMID: 28540209 DOI: 10.21037/cdt.2017.03.22] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
During the last decade coronary computed tomography angiography (CTA) has become the preeminent non-invasive imaging modality to detect coronary artery disease (CAD) with high accuracy. However, CTA has a limited value in assessing the hemodynamic significance of a given stenosis due to a modest specificity and positive predictive value. In recent years, different CT techniques for detecting myocardial ischemia have emerged, such as CT-derived fractional flow reserve (FFR-CT), transluminal attenuation gradient (TAG), and myocardial CT perfusion (CTP) imaging. Myocardial CTP imaging can be performed with a single static scan during first pass of the contrast agent, with monoenergetic or dual-energy acquisition, or as a dynamic, time-resolved scan during stress by using coronary vasodilator agents (adenosine, dipyridamole, or regadenoson). A number of CTP techniques are available, which can assess myocardial perfusion in both a qualitative, semi-quantitative or quantitative manner. Once used primarily as research tools, these modalities are increasingly being used in routine clinical practice. All these techniques offer the substantial advantage of combining anatomical and functional evaluation of flow-limiting coronary stenosis in the same examination that would be beneficial for clinical decision-making. This review focuses on the state-of the-art and future trends of these evolving imaging modalities in the field of cardiology for the physiologic assessments of CAD.
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Affiliation(s)
- Filippo Cademartiri
- Department of Radiology, Montreal Heart Institute, Université de Montreal, Montreal, Canada.,Department of Radiology, Erasmus Medical Center University, Rotterdam, The Netherlands
| | - Sara Seitun
- Department of Radiology, IRCCS AOU San Martino-IST, Genoa, Italy
| | - Alberto Clemente
- Department of Radiology, Fondazione Toscana Gabriele Monasterio, Pisa and Massa, Italy
| | | | - Patrizia Toia
- Department of Radiology, University of Palermo, Palermo, Italy
| | - Giuseppe Runza
- Department of Radiology, P.O. Umberto I, Azienda Sanitaria Provinciale 8, Siracusa, Italy
| | - Massimo Midiri
- Department of Radiology, University of Palermo, Palermo, Italy
| | - Erica Maffei
- Department of Radiology, Montreal Heart Institute, Université de Montreal, Montreal, Canada
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