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Fujimoto S, Nozaki YO, Sakamoto T, Nakanishi R, Asano T, Kadota K, Komiyama K, Taguchi E, Okubo R, Saito A, Ikuta A, Nojiri S, Tanabe K. Clinical impacts of CT-derived fractional flow reserve under insurance reimbursement: Results from multicenter, prospective registry. J Cardiol 2023:S0914-5087(23)00273-3. [PMID: 37949315 DOI: 10.1016/j.jjcc.2023.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Revised: 10/31/2023] [Accepted: 11/02/2023] [Indexed: 11/12/2023]
Abstract
BACKGROUND Although computed tomography-derived fractional flow reserve (FFRCT) has been reimbursed in a few countries, its impacts on daily practice of coronary artery diseases are not fully elucidated. We evaluated the clinical impacts of FFRCT under the real Japanese insurance reimbursement. METHODS In the multicenter prospective registry: DYNAMIC-FFRCT study, a total of 410 patients who underwent FFRCT analysis under reimbursement were prospectively enrolled at 6 Japanese sites from October 2019 to November 2021. Coronary CT angiography and FFRCT findings, treatment plans, and 90-day outcomes were recorded. The primary endpoint was the redirection rate from the tests that might be expected without FFRCT [invasive coronary angiography (ICA)-selected group, myocardial perfusion single photon emission CT (MPS)-selected group, optimal medical therapy (OMT)-selected group, and others-selected group] to those that were actually performed based on FFRCT. RESULTS ICA could be avoided in 39.5 % in the ICA-selected group (N = 233). In particular, in 94.3 % of patients with an FFRCT value of >0.80, additional examinations, such as ICA, were avoided. In addition, in the MPS-selected group (N = 133), 92.6 % had no additional tests with FFRCT > 0.80, while only 2 cases with FFRCT ≤ 0.80 underwent additional MPS examination. On the contrary, 33.3 % of the OMT-selected group (N = 33) had FFRCT ≤ 0.80. Approximately, 35 % medical cost reduction was also finally expected. CONCLUSION Introduction of FFRCT could not only reduce unnecessary ICA and be a test that replaces the conventional non-invasive functional assessment modality but also result in medical cost reduction even when used under real Japanese insurance reimbursement.
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Affiliation(s)
- Shinichiro Fujimoto
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - Yui O Nozaki
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Tomohiro Sakamoto
- Division of Cardiology, Saiseikai Kumamoto Hospital Cardiovascular Center, Kumamoto, Japan
| | - Rine Nakanishi
- Department of Cardiovascular Medicine, Toho University Graduate School of Medicine, Tokyo, Japan; Department of Cardiovascular Medicine, Department of Internal Medicine, Toho University Faculty of Medicine, Toho University Omori Medical Center, Tokyo, Japan
| | - Taku Asano
- Department of Cardiovascular Medicine, St. Luke's International Hospital, St. Luke's International University, Tokyo, Japan
| | - Kazushige Kadota
- Department of Cardiovascular Medicine, Kurashiki Central Hospital, Kurashiki, Japan
| | - Kota Komiyama
- Division of Cardiology, Mitsui Memorial Hospital, Tokyo, Japan
| | - Eiji Taguchi
- Division of Cardiology, Saiseikai Kumamoto Hospital Cardiovascular Center, Kumamoto, Japan
| | - Ryo Okubo
- Department of Cardiovascular Medicine, Department of Internal Medicine, Toho University Faculty of Medicine, Toho University Omori Medical Center, Tokyo, Japan
| | - Akira Saito
- Department of Cardiovascular Medicine, St. Luke's International Hospital, St. Luke's International University, Tokyo, Japan
| | - Akihiro Ikuta
- Department of Cardiovascular Medicine, Kurashiki Central Hospital, Kurashiki, Japan
| | - Shuko Nojiri
- Medical Technology Innovation Center, Juntendo University, Tokyo, Japan
| | - Kengo Tanabe
- Division of Cardiology, Mitsui Memorial Hospital, Tokyo, Japan
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Huang W, Zhang J, Yang L, Hu Y, Leng X, Liu Y, Jin H, Tang Y, Wang J, Liu X, Guo Y, Ye C, Feng Y, Xiang J, Tang L, Du C. Accuracy of intravascular ultrasound-derived virtual fractional flow reserve (FFR) and FFR derived from computed tomography for functional assessment of coronary artery disease. Biomed Eng Online 2023; 22:64. [PMID: 37370077 DOI: 10.1186/s12938-023-01122-x] [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: 03/05/2023] [Accepted: 05/28/2023] [Indexed: 06/29/2023] Open
Abstract
BACKGROUND Coronary computed tomography-derived fractional flow reserve (CT-FFR) and intravascular ultrasound-derived fractional flow reserve (IVUS-FFR) are two functional assessment methods for coronary stenoses. However, the calculation algorithms for these methods differ significantly. This study aimed to compare the diagnostic performance of CT-FFR and IVUS-FFR using invasive fractional flow reserve (FFR) as the reference standard. METHODS Six hundred and seventy patients (698 lesions) with known or suspected coronary artery disease were screened for this retrospective analysis between January 2020 and July 2021. A total of 40 patients (41 lesions) underwent intravascular ultrasound (IVUS) and FFR evaluations within six months after completing coronary CT angiography were included. Two novel CFD-based models (AccuFFRct and AccuFFRivus) were used to compute the CT-FFR and IVUS-FFR values, respectively. The invasive FFR ≤ 0.80 was used as the reference standard for evaluating the diagnostic performance of CT-FFR and IVUS-FFR. RESULTS Both AccuFFRivus and AccuFFRct demonstrated a strong correlation with invasive FFR (R = 0.7913, P < 0.0001; and R = 0.6296, P < 0.0001), and both methods showed good agreement with FFR. The area under the receiver operating characteristic curve was 0.960 (P < 0.001) for AccuFFRivus and 0.897 (P < 0.001) for AccuFFRct in predicting FFR ≤ 0.80. FFR ≤ 0.80 were predicted with high sensitivity (96.6%), specificity (85.7%), and the Youden index (0.823) using the same cutoff value of 0.80 for AccuFFRivus. A good diagnostic performance (sensitivity 89.7%, specificity 85.7%, and Youden index 0.754) was also demonstrated by AccuFFRct. CONCLUSIONS AccuFFRivus, computed from IVUS images, exhibited a high diagnostic performance for detecting myocardial ischemia. It demonstrated better diagnostic power than AccuFFRct, and could serve as an accurate computational tool for ischemia diagnosis and assist in clinical decision-making.
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Affiliation(s)
- Wenhao Huang
- Department of Medicine, The Second College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Jingyuan Zhang
- Department of Medicine, The Second College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Lin Yang
- Department of Geriatrics, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yumeng Hu
- ArteryFlow Technology Co., Ltd., Hangzhou, China
| | | | - Yajun Liu
- Department of Medicine, The Second College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Hongfeng Jin
- Department of Cardiology, Zhejiang Hospital, Hangzhou, China
| | - Yiming Tang
- Department of Cardiology, Zhejiang Hospital, Hangzhou, China
| | - Jiangting Wang
- Department of Cardiology, Zhejiang Hospital, Hangzhou, China
| | - Xiaowei Liu
- Department of Cardiology, Zhejiang Hospital, Hangzhou, China
| | - Yitao Guo
- Department of Cardiology, Zhejiang Hospital, Hangzhou, China
| | - Chen Ye
- Department of Cardiology, Zhejiang Hospital, Hangzhou, China
| | - Yue Feng
- Department of Radiology, Zhejiang Hospital, Hangzhou, China
| | | | - Lijiang Tang
- Department of Cardiology, Zhejiang Hospital, Hangzhou, China.
| | - Changqing Du
- Department of Cardiology, Zhejiang Hospital, Hangzhou, China.
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Wada S, Iwanaga Y, Nakai M, Nakao YM, Miyamoto Y, Noguchi T. Combination of coronary CT angiography, FFR CT , and risk factors in the prediction of major adverse cardiovascular events in patients suspected CAD. Clin Cardiol 2023; 46:494-501. [PMID: 36860175 DOI: 10.1002/clc.23989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 01/18/2023] [Accepted: 01/29/2023] [Indexed: 03/03/2023] Open
Abstract
BACKGROUND To examine the utility of fractional flow reserve by coronary computed tomography (CT) angiography (FFRCT ) for predicting major adverse cardiovascular events (MACE) in patients with suspected coronary artery disease (CAD). METHODS This was a nationwide multicenter prospective cohort study including consecutive 1187 patients aged 50-74 years with suspected CAD and had available coronary CT angiography (CCTA). In patients with ≥50% coronary artery stenosis (CAS), FFRCT was further analyzed. The Cox proportional hazards model was used to examine the association of FFRCT and cardiovascular risk factors with incident MACE within 2 years. RESULTS Among 933 patients with available information on MACE within 2 years after enrollment, the incidence rate of MACE was higher in 281 patients with CAS than in those without CAS (6.11 vs. 1.16 per 100 patient-year). In 241 patients with CAS, the Cox proportional hazards analysis showed that FFRCT as well as diabetes mellitus and low high-density lipoprotein cholesterol level were independently associated with incident MACE. Moreover, the hazard ratio was significantly higher in patients harboring all three factors compared to those harboring 0-2 of the three factors (6.01; 95% confidence interval: 2.77-13.03). CONCLUSIONS Combinatorial assessment using CCTA for stenosis, FFRCT , and risk factors was useful for more accurate prediction of MACE in patients with suspected CAD. Among patients with CAS, those with lower FFRCT , diabetes mellitus, and low high-density lipoprotein cholesterol level were at highest risk for MACE during the 2-year period following enrollment.
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Affiliation(s)
- Shinichi Wada
- Department of Medical and Health Information Management, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Yoshitaka Iwanaga
- Department of Medical and Health Information Management, National Cerebral and Cardiovascular Center, Suita, Japan.,Department of Cardiology, Sakurabashi Watanabe Hospital, Osaka, Japan
| | - Michikazu Nakai
- Department of Medical and Health Information Management, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Yoko M Nakao
- Department of Medical and Health Information Management, National Cerebral and Cardiovascular Center, Suita, Japan.,Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK
| | - Yoshihiro Miyamoto
- Department of Medical and Health Information Management, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Teruo Noguchi
- Department of Cardiology, National Cerebral and Cardiovascular Center, Suita, Japan
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Xie Z, Wu T, Mu J, Zhang P, Wang X, Liang T, Weng Y, Luo J, Yu H. Influence of Left Ventricular Diastolic Dysfunction on the Diagnostic Performance of Coronary Computed Tomography Angiography-Derived Fractional Flow Reserve. J Clin Med 2023; 12:jcm12051724. [PMID: 36902511 PMCID: PMC10003343 DOI: 10.3390/jcm12051724] [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: 12/27/2022] [Revised: 02/05/2023] [Accepted: 02/19/2023] [Indexed: 02/24/2023] Open
Abstract
OBJECTIVES Our study aimed to demonstrate the influence of left ventricular (LV) diastolic dysfunction on the diagnostic performance of coronary computed tomography angiography-derived fractional flow reserve (CT-FFR). METHODS One hundred vessels from 90 patients were retrospectively analyzed. All patients underwent echocardiography, coronary computed tomography angiography (CCTA), CT-FFR, invasive coronary angiography (ICA), and fractional flow reserve (FFR). The study population was divided into normal and dysfunction groups according to the LV diastolic function, and the diagnostic performance in both groups was assessed. RESULTS There was a good correlation between CT-FFR and FFR (R = 0.768 p < 0.001) on a per-vessel basis. The sensitivity, specificity, and accuracy were 82.3%, 81.8%, and 82%, respectively. The sensitivity, specificity, and accuracy were 84.6%, 88.5%, and 87.2% in the normal group and 81%, 77.5%, and 78.7% in the dysfunction group, respectively. CT-FFR showed no statistically significant difference in the AUC in the normal group vs. the dysfunction group (AUC: 0.920 [95% CI 0.787-0.983] vs. 0.871 [95% CI 0.761-0.943], Z = 0.772 p = 0.440). However, there was still a good correlation between CT-FFR and FFR in the normal group (R = 0.767, p < 0.001) and dysfunction group (R = 0.767 p < 0.001). CONCLUSIONS LV diastolic dysfunction had no effect on the diagnostic accuracy of CT-FFR. CT-FFR has good diagnostic performance in both LV diastolic dysfunction and the normal group and can be used as an effective tool for finding lesion-specific ischemia while screening for arterial disease in patients.
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Affiliation(s)
- Zhixin Xie
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou 510515, China
- Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
- Guangdong Cardiovascular Institute, Guangzhou 510080, China
| | - Tianlong Wu
- Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
- Guangdong Cardiovascular Institute, Guangzhou 510080, China
| | - Jing Mu
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou 510515, China
- Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
- Guangdong Cardiovascular Institute, Guangzhou 510080, China
| | - Ping Zhang
- Department of Cardiology, Shenzhen Hospital, Southern Medical University, Shenzhen 518000, China
| | - Xuan Wang
- Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
- School of Medicine, South China University of Technology, Guangzhou 510006, China
| | - Tao Liang
- Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
- School of Medicine, South China University of Technology, Guangzhou 510006, China
| | - Yihan Weng
- Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
- Guangdong Cardiovascular Institute, Guangzhou 510080, China
- Shantou University Medical College, Shantou 515041, China
| | - Jianfang Luo
- Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
- Guangdong Cardiovascular Institute, Guangzhou 510080, China
| | - Huimin Yu
- Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
- Guangdong Cardiovascular Institute, Guangzhou 510080, China
- Department of Cardiology, Guangdong Provincial People’s Hospital’s Nanhai Hospital, Foshan 528000, China
- Correspondence:
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Kawashima H, Kogame N, Ono M, Hara H, Takahashi K, Reiber JH, Thomsen B, de Winter RJ, Tanaka K, La Meir M, de Mey J, Schneider U, Doenst T, Teichgräber U, Wijns W, Mushtaq S, Pompilio G, Bartorelli AL, Andreini D, Serruys PW, Onuma Y. Diagnostic Concordance and Discordance Between Angiography-Based Quantitative Flow Ratio and Fractional Flow Reserve Derived from Computed Tomography in Complex Coronary Artery Disease. J Cardiovasc Comput Tomogr 2022; 16:336-342. [DOI: 10.1016/j.jcct.2022.02.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Revised: 01/28/2022] [Accepted: 02/09/2022] [Indexed: 12/24/2022]
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Ahmed AI, Han Y, Al Rifai M, Alnabelsi T, Nabi F, Chang SM, Cocker M, Schwemmer C, Ramirez-Giraldo JC, Kleiman NS, Zoghbi WA, Mahmarian JJ, Al-Mallah MH. Prognostic Value of Computed Tomography-Derived Fractional Flow Reserve Comparison With Myocardial Perfusion Imaging. JACC Cardiovasc Imaging 2021; 15:284-295. [PMID: 34656489 DOI: 10.1016/j.jcmg.2021.09.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 09/01/2021] [Accepted: 09/02/2021] [Indexed: 12/31/2022]
Abstract
OBJECTIVES The aim of this study was to compare the incremental prognostic value of coronary computed tomography (CT) angiography (CCTA)-derived machine learning fractional flow reserve CT (ML-FFRct) versus that of ischemia detected on single-photon emission-computed tomography (SPECT) myocardial perfusion imaging (MPI) on incident cardiovascular outcomes. BACKGROUND SPECT MPI and ML-FFRct are noninvasive tools that can assess the hemodynamic significance of coronary atherosclerotic disease. METHODS We studied a retrospective cohort of consecutive patients who underwent clinically indicated CCTA and SPECT MPI. ML-FFRct was computed using a ML prototype. The primary outcome was all-cause mortality and nonfatal myocardial infarction (D/MI), and the secondary outcome was D/MI and unplanned revascularization, percutaneous coronary intervention (PCI) or coronary artery bypass graft (CABG) occurring more than 90 days postimaging. Multiple nested multivariate cox regression was used to model a scenario wherein an initial anatomical assessment was followed by a functional assessment. RESULTS A total of 471 patients (mean age: 64 ± 13 year; 53% males) were included. Comorbidities were prevalent (78% hypertension, 66% diabetes, 81% dyslipidemia). ML-FFRct was <0.8 in at least 1 proximal/midsegment was present in 41.6% of patients, and ischemia on MPI was present in 13.8%. After a median follow-up of 18 months, 7% of patients (n = 33) experienced D/MI. On multivariate Cox proportional analysis, the presence of ischemia on MPI but not ML-FFRct significantly predicted D/MI (HR: 2.3; 95% CI: 1.0-5.0; P = 0.047; or HR: 0.7; 95% CI: 0.3-1.4; P = 0.306 respectively) when added to CCTA obstructive stenosis. Furthermore, the model with SPECT ischemia had higher global chi-square result and significantly improved reclassification. Results were similar using the secondary outcome and on several sensitivity analyses. CONCLUSIONS In a high-risk patient cohort, SPECT MPI but not ML-FFRct adds independent and incremental prognostic information to CCTA-based anatomical assessment and clinical risk factors in predicting incident outcomes.
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Affiliation(s)
| | - Yushui Han
- Houston Methodist Debakey Heart and Vascular Center, Houston, Texas, USA
| | | | - Talal Alnabelsi
- Houston Methodist Debakey Heart and Vascular Center, Houston, Texas, USA
| | - Faisal Nabi
- Houston Methodist Debakey Heart and Vascular Center, Houston, Texas, USA
| | - Su Min Chang
- Houston Methodist Debakey Heart and Vascular Center, Houston, Texas, USA
| | - Myra Cocker
- Houston Methodist Debakey Heart and Vascular Center, Houston, Texas, USA; Computed Tomography-Research Collaborations, Siemens Healthineers, Malvern, Pennsylvania, USA
| | - Chris Schwemmer
- Computed Tomography-Research and Development, Siemens Healthcare GmbH, Forchheim, Germany
| | - Juan C Ramirez-Giraldo
- Computed Tomography-Research Collaborations, Siemens Healthineers, Malvern, Pennsylvania, USA
| | - Neal S Kleiman
- Houston Methodist Debakey Heart and Vascular Center, Houston, Texas, USA
| | - William A Zoghbi
- Houston Methodist Debakey Heart and Vascular Center, Houston, Texas, USA
| | - John J Mahmarian
- Houston Methodist Debakey Heart and Vascular Center, Houston, Texas, USA
| | - Mouaz H Al-Mallah
- Houston Methodist Debakey Heart and Vascular Center, Houston, Texas, USA.
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Matsuo H, Kawasaki T, Amano T, Kawase Y, Sobue Y, Kondo T, Morino Y, Yoda S, Sakamoto T, Ito H, Shite J, Otake H, Tanaka N, Terashima M, Kadota K, Patel MR, Nieman K, Rogers C, Norgaard BL, Bax JJ, Chinnaiyan KM, Berman DS, Fairbairn TA, Hurwitz Koweek LM, Leipsic J, Akasaka T. Effect of Coronary Computed Tomography Angiography-Derived Fractional Flow Reserve on Physicians' Clinical Behavior - Differences Between Sites With and Without Appropriate Use Criteria as Designated by the Japanese Reimbursement System. Circ Rep 2020; 2:364-371. [PMID: 33693254 PMCID: PMC7932815 DOI: 10.1253/circrep.cr-20-0038] [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] [Indexed: 11/25/2022] Open
Abstract
Background:
Coronary computed tomography angiography (CCTA)-derived fractional flow reserve (FFRCT) is an established tool for identifying lesion-specific ischemia that is now approved for use by the Japanese insurance system. However, current clinical reimbursement is strictly limited to institutions with designated appropriate use criteria (AUC). This study assessed differences in physicians’ behavior (e.g., use and interpretation of FFRCT, final management) according to Japanese AUC and non-AUC site designation. Methods and Results:
Of 5,083 patients in the ADVANCE Registry, 1,829 from Japan were enrolled in this study. Physicians’ behavior after interrogating CCTA and FFRCT
was analyzed separately according to AUC and non-AUC site designation. Compared with AUC sites, patients referred for FFRCT
from non-AUC sites had a higher rate of negative FFRCT, less severe anatomic stenosis, and a slightly lower rate of management plan reclassification (51.2% vs. 61.3%), with near-identical utility in both groups. Actual care corresponded equally well to post-FFRCT
plans in both groups. The likelihood of revascularization for positive or negative FFRCT
was similar between the 2 groups. Importantly, AUC and non-AUC sites were equally unlikely to revascularize patients with negative FFRCT
and stenosis >50% or patients with positive FFRCT
and stenosis <50%. Conclusions:
Compared with AUC sites, non-AUC sites had lower disease burden and reclassification of management plans, but nearly identical clinical integration. Actual care corresponded equally well to post-FFRCT
recommendations at both sites.
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Affiliation(s)
- Hitoshi Matsuo
- Department of Cardiovascular Medicine, Gifu Heart Center Gifu Japan
| | | | - Tetsuya Amano
- Department of Cardiology, Aichi Medical University Aichi Japan
| | - Yoshiaki Kawase
- Department of Cardiovascular Medicine, Gifu Heart Center Gifu Japan
| | - Yoshihiro Sobue
- Department of Cardiovascular Medicine, Gifu Heart Center Gifu Japan
| | - Takeshi Kondo
- Department of Cardiovascular Medicine, Gifu Heart Center Gifu Japan
| | - Yoshihiro Morino
- Division of Cardiology, Department of Internal Medicine, Iwate Medical University Iwate Japan
| | - Shunichi Yoda
- Department of Cardiology, Nihon University Itabashi Hospital Tokyo Japan
| | - Tomohiro Sakamoto
- Division of Cardiology, Saiseikai Kumamoto Hospital Cardiovascular Center Kumamoto Japan
| | - Hiroshi Ito
- Department of Cardiovascular Medicine, Okayama University Graduate School of Medicine Okayama Japan
| | - Junya Shite
- Division of Cardiology, Osaka Saiseikai Nakatsu Hospital Osaka Japan
| | - Hiromasa Otake
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine Hyogo Japan
| | - Nobuhiro Tanaka
- Department of Cardiology, Tokyo Medical University Hachioji Medical Center Tokyo Japan
| | | | - Kazushige Kadota
- Department of Cardiology, Kurashiki Central Hospital Okayama Japan
| | - Manesh R Patel
- Division of Cardiology, Department of Medicine, Duke University Medical Center, Duke Clinical Research Institute, Duke University School of Medicine Durham, NC USA
| | - Koen Nieman
- Department of Cardiology, Erasmus Medical Center Rotterdam The Netherlands
| | | | | | - Jeroen J Bax
- Department of Cardiology, Leiden University Medical Center Leiden Netherlands
| | - Kavitha M Chinnaiyan
- Division of Cardiology, Beaumont Academic Heart and Vascular Group Royal Oak, MI USA
| | - Daniel S Berman
- Division of Nuclear Imaging, Department of Imaging, Cedars-Sinai Heart Institute Los Angeles, CA USA
| | - Timothy A Fairbairn
- Department of Cardiology, University of Liverpool, Liverpool Heart and Chest Hospital Liverpool UK
| | - Lynne M Hurwitz Koweek
- Division of Cardiology, Department of Medicine, Duke University Medical Center, Duke Clinical Research Institute, Duke University School of Medicine Durham, NC USA
| | - Jonathon Leipsic
- Department of Radiology, University of British Columbia Vancouver, BC Canada
| | - Takashi Akasaka
- Department of Cardiovascular Medicine, Wakayama Medical University Wakayama Japan
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Kubo T, Shiono Y. Prognostic Relevance of Discordant Results Between Fractional Flow Reserve and Resting Indices. Circ J 2019; 83:2203-2204. [PMID: 31511441 DOI: 10.1253/circj.cj-19-0769] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Takashi Kubo
- Department of Cardiovascular Medicine, Wakayama Medical University
| | - Yasutsugu Shiono
- Department of Cardiovascular Medicine, Wakayama Medical University
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QFR Versus FFR Derived From Computed Tomography for Functional Assessment of Coronary Artery Stenosis. JACC Cardiovasc Interv 2019; 12:2050-2059. [DOI: 10.1016/j.jcin.2019.06.043] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 06/24/2019] [Accepted: 06/25/2019] [Indexed: 11/24/2022]
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