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Nakamura K, Funabashi N, Naito S, Uehara M, Takaoka H, Kaseno K, Kumagai K, Oshima S, Kobayashi Y. Reply to letter "anatomical relationship of coronary sinus/great cardiac vein and LCx artery along mitral annulus in atrial-fibrillation before radiofrequency catheter ablation using 320-slice CT". Int J Cardiol 2018; 266:160. [PMID: 29887439 DOI: 10.1016/j.ijcard.2018.02.006] [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: 01/18/2018] [Accepted: 02/01/2018] [Indexed: 10/14/2022]
Affiliation(s)
- Kohki Nakamura
- Division of Cardiology, Gunma Prefectural Cardiovascular Center, 3-12 Kameizumi-machi, Maebashi City, Gunma 371-0004, Japan
| | - Nobusada Funabashi
- Department of Cardiovascular Science and Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan.
| | - Shigeto Naito
- Division of Cardiology, Gunma Prefectural Cardiovascular Center, 3-12 Kameizumi-machi, Maebashi City, Gunma 371-0004, Japan
| | - Masae Uehara
- Department of Cardiovascular Science and Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan
| | - Hiroyuki Takaoka
- Department of Cardiovascular Science and Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan
| | - Kenichi Kaseno
- Division of Cardiology, Gunma Prefectural Cardiovascular Center, 3-12 Kameizumi-machi, Maebashi City, Gunma 371-0004, Japan
| | - Koji Kumagai
- Division of Cardiology, Gunma Prefectural Cardiovascular Center, 3-12 Kameizumi-machi, Maebashi City, Gunma 371-0004, Japan
| | - Shigeru Oshima
- Division of Cardiology, Gunma Prefectural Cardiovascular Center, 3-12 Kameizumi-machi, Maebashi City, Gunma 371-0004, Japan
| | - Yoshio Kobayashi
- Department of Cardiovascular Science and Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan
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Korosoglou G, Marwan M, Giusca S, Schmermund A, Schneider S, Bruder O, Hausleiter J, Schroeder S, Leber A, Limbourg T, Gitsioudis G, Rixe J, Zahn R, Katus HA, Achenbach S, Senges J. Influence of irregular heart rhythm on radiation exposure, image quality and diagnostic impact of cardiac computed tomography angiography in 4,339 patients. Data from the German Cardiac Computed Tomography Registry. J Cardiovasc Comput Tomogr 2017; 12:34-41. [PMID: 29195843 DOI: 10.1016/j.jcct.2017.11.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2017] [Revised: 10/22/2017] [Accepted: 11/16/2017] [Indexed: 01/07/2023]
Abstract
BACKGROUND Coronary computed tomography angiography (coronary CTA) provides non-invasive evaluation of the coronary arteries with high precision for the detection of significant coronary artery disease (CAD). AIM To investigate whether irregular heart rhythm including atrial fibrillation and premature beats during data acquisition influences (i) radiation and contrast media exposure, (ii) number of non-evaluable coronary segments and (iii) diagnostic impact of coronary CTA. METHODS Twelve tertiary care centers with ≥64 slice CT scanners and ≥5 years of experience with cardiovascular imaging participated in this registry. Between 2009 and 2014, 4339 examinations were analysed in patients who underwent clinically indicated coronary CTA for suspected CAD. Clinical and epidemiologic data were gathered from all patients. In addition, clinical presentation, heart rate and rhythm during the scan, Agatston score, radiation and contrast media exposure and the diagnostic impact of coronary CTA were systematically analysed. RESULTS Of 4339 patients in total, 260 (6.0%) had irregular heart rhythm, whereas the remaining 4079 (94.0%) had stable sinus rhythm. Patients with irregular heart rhythm were older (63.2 ± 12.5yrs versus 58.6 ± 11.4yrs. p < 0.001), exhibited a higher rate of pathologic stress tests before CTA (37.1% versus 26.1%, p < 0.01) and higher heart rates during CTA compared to those with sinus rhythm (62.5 ± 11.6bpm versus 58.9 ± 8.5bpm, p < 0.001). Both contrast media exposure and radiation exposure were significantly higher in patients with irregular heart rhythm (90 mL (95%CI = 80-110 mL) versus 80 mL (95%CI = 70-90 mL) and 6.2 mSv (95%CI = 2.5-11.7) versus 3.3 mSv (95%CI = 1.7-6.9), p < 0.001 for both). Coronary CTA excluded significant CAD less frequently in patients with irregular heart rhythm (32.9% versus 44.8%, p < 0.001). This was attributed to the higher rate of examinations with at least one non-diagnostic coronary segment in patients with irregular heart rhythm (10.8% versus 4.6%, p < 0.001). Subsequent invasive angiography could be avoided in 47.2% of patients with irregular heart rhythm compared to 52.9% of patients with sinus rhythm (p = NS), whereas downstream stress testing was recommended in 3.2% of patients with irregular heart rhythm versus 4.0% of patients with sinus rhythm (p = NS). CONCLUSION A significant number of patients scheduled for coronary CTA have irregular heart rhythm in a real-world clinical setting. In such patients, heart rate during coronary CTA is higher, possibly resulting in (i) higher radiation and contrast agent exposure and (ii) more frequent coronary CTA examinations with at least one non-diagnostic coronary artery segment. However, this does not seem to lead to increased downstream stress testing or subsequent invasive procedures.
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Affiliation(s)
- Grigorios Korosoglou
- Department of Cardiology and Vascular Medicine, GRN Hospital Weinheim, Weinheim, Germany..
| | - Mohamed Marwan
- Department of Cardiology, Friedrich-Alexander-Universität Erlangen-Nuernberg, Erlangen, Germany
| | - Sorin Giusca
- Department of Cardiology and Vascular Medicine, GRN Hospital Weinheim, Weinheim, Germany
| | - Axel Schmermund
- Cardiovascular Center Bethanien (CCB), Frankfurt Am Main, Germany
| | | | | | - Jörg Hausleiter
- Department of Cardiology, Ludwig-Maximilian's University, Munich, Germany
| | - Stephen Schroeder
- Department of Cardiology and Pneumology, Alb Fils Clinics, Geislingen, Germany
| | | | - Tobias Limbourg
- Stiftung Institut für Herzinfarktforschung, Ludwigshafen, Germany
| | - Gitsios Gitsioudis
- Department of Cardiology, Friedrich-Alexander-Universität Erlangen-Nuernberg, Erlangen, Germany
| | - Johannes Rixe
- Department of Cardiology, University of Giessen, Giessen, Germany
| | - Ralf Zahn
- Department of Cardiology, Ludwigshafen, Germany
| | - Hugo A Katus
- Department of Cardiology, Angiology and Pneumology, University of Heidelberg, Heidelberg, Germany
| | - Stephan Achenbach
- Department of Cardiology, Friedrich-Alexander-Universität Erlangen-Nuernberg, Erlangen, Germany
| | - Jochen Senges
- Stiftung Institut für Herzinfarktforschung, Ludwigshafen, Germany
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Takaoka H, Funabashi N, Uehara M, Ozawa K, Kobayashi Y. Respiratory function in candidates for cardiac 320-slice CT: Relationship between coronary arterial findings, left ventricle size, and ventricular function, with emphysema, FEV1.0%, %VC, and prognosis. Int J Cardiol 2016; 224:4-7. [PMID: 27595977 DOI: 10.1016/j.ijcard.2016.08.336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 08/24/2016] [Indexed: 11/18/2022]
Affiliation(s)
- Hiroyuki Takaoka
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan
| | - Nobusada Funabashi
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan.
| | - Masae Uehara
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan
| | - Koya Ozawa
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan
| | - Yoshio Kobayashi
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan
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Ozawa K, Funabashi N, Bujo H, Takaoka H, Kobayashi Y. Fair prognosis in heterotypic familial hypercholesterolemia subjects with statin use even with severe coronary calcification and radiation exposure from CT: A median 88.5-month follow-up study. Int J Cardiol 2016; 223:827-828. [PMID: 27575786 DOI: 10.1016/j.ijcard.2016.08.284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2016] [Accepted: 08/17/2016] [Indexed: 11/24/2022]
Affiliation(s)
- Koya Ozawa
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Nobusada Funabashi
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Chiba, Japan.
| | - Hideaki Bujo
- Department of Clinical-Laboratory and Experimental-Research Medicine, Toho University Sakura Medical Center, Sakura, Japan
| | - Hiroyuki Takaoka
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Yoshio Kobayashi
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Chiba, Japan
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Ghekiere O, Nchimi A, Djekic J, El Hachemi M, Mancini I, Hansen D, Vanhoenacker P, de Roos A, Dendale P. Coronary Computed Tomography Angiography: Patient-related factors determining image quality using a second-generation 320-slice CT scanner. Int J Cardiol 2016; 221:970-6. [PMID: 27441477 DOI: 10.1016/j.ijcard.2016.07.141] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Revised: 07/07/2016] [Accepted: 07/08/2016] [Indexed: 10/21/2022]
Abstract
PURPOSE To investigate the diagnostic confidence of Coronary Computed Tomography Angiography (CCTA) and the effect of patient-related factors on CCTA image quality using a second-generation 320-slice scanner. METHODS AND RESULTS 200 consecutive patients (mean age 60±12years; 109 men) prospectively underwent CCTA. The mean body mass index (BMI) was 27.1±4.9kg/m(2); the median heart rate (HR) was 60.0 (interquartile range (IQR), 53.9-66.1) beats per minute (bpm). The median segment's diameter was 2.8 (IQR, 2.2-3.4) mm. For each coronary segment ≥1.5mm in diameter, two readers scored: diameter narrowing as < or ≥50%, overall diagnostic confidence and motion-related image quality, with interobserver agreement kappa-values of 0.89, 0.91 and 0.61 respectively. Seventy-nine of the 2505 evaluated segments (3.2%) had non-diagnostic image quality because of coronary calcifications (66/79; 83.5%), stent- (6/79; 7.5%), pacemaker- (2/79; 2.5%) or motion-related artifacts (5/79; 6.5%). The effect of patient-related factors on motion-related image quality was investigated by multinomial logistic regression in 181 patients with calcium score (IQR, 0-446.5). Increasing coronary diameter was the most improving image quality factor (odds ratio (OR), 1.8637; p<0.001), marginally followed by lower HR (OR, 0.9547; p<0.001) and calcium score (OR, 0.9997; p=0.04). Gender (p=0.70), age (p=0.24) and BMI (p=0.45) did not affect image quality. CONCLUSION Using a second-generation 320-slice scanner, CCTA diagnostic confidence is predominantly affected by coronary calcifications, whereas motion-related image quality is non-diagnostic only in exceptional cases and mainly influenced by the coronary diameter. For future developments, our study findings therefore suggest greater requirements concerning spatial resolution and calcium-related artifact removal than concerning temporal resolution, especially to improve diagnostic confidence in patient groups with smaller coronary diameters.
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Affiliation(s)
- Olivier Ghekiere
- Department of Radiology, Centre Hospitalier Chrétien (CHC), Rue de Hesbaye, 75, B-4000 Liège, Belgium; Department of Radiology, Jessa Hospital, Stadsomvaart 11, B-3500 Hasselt, Belgium; Faculty of Medicine and Life Sciences, Biomed and Reval, Hasselt University, Agoralaan, Building A and C, B-3500 Hasselt, Belgium.
| | - Alain Nchimi
- Liège University (ULg), GIGA Cardiovascular Sciences, Domaine Universitaire du Sart Tilman, Rue de l'hôpital, 1, B-4000 Liège, Belgium
| | - Julien Djekic
- Department of Radiology, Centre Hospitalier Chrétien (CHC), Rue de Hesbaye, 75, B-4000 Liège, Belgium
| | - Mounia El Hachemi
- Liège University (ULg), GIGA Cardiovascular Sciences, Domaine Universitaire du Sart Tilman, Rue de l'hôpital, 1, B-4000 Liège, Belgium
| | - Isabelle Mancini
- Department of Radiology, Centre Hospitalier Chrétien (CHC), Rue de Hesbaye, 75, B-4000 Liège, Belgium
| | - Dominique Hansen
- Faculty of Medicine and Life Sciences, Biomed and Reval, Hasselt University, Agoralaan, Building A and C, B-3500 Hasselt, Belgium
| | - Piet Vanhoenacker
- Department of Radiology, OLV Hospital Aalst, Moorselbaan 164, B-9300 Aalst, Belgium
| | - Albert de Roos
- Department of Radiology, Leiden University Medical Center, Albinusdreef, 2, NL-2333 ZA Leiden, The Netherlands
| | - Paul Dendale
- Faculty of Medicine and Life Sciences, Biomed and Reval, Hasselt University, Agoralaan, Building A and C, B-3500 Hasselt, Belgium; Heart Center Hasselt, Jessa Hospital, Stadsomvaart, 11, B-3500 Hasselt, Belgium
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Ono R, Funabashi N, Takaoka H, Ozawa K, Ota S, Nakatani Y, Matsumiya G, Kobayashi Y. Massive myocardial aneurysm due to inferior to posterior myocardial infarction complicated with right-sided heart failure in a 36-year-old male. Int J Cardiol 2016; 209:98-102. [PMID: 26882194 DOI: 10.1016/j.ijcard.2016.01.076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Accepted: 01/03/2016] [Indexed: 10/22/2022]
Affiliation(s)
- Ryohei Ono
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan
| | - Nobusada Funabashi
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan.
| | - Hiroyuki Takaoka
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan
| | - Koya Ozawa
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan
| | - Satoshi Ota
- Department of Pathology, Chiba University Hospital, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan
| | - Yukio Nakatani
- Department of Diagnostic Pathology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan
| | - Goro Matsumiya
- Department of Cardiovascular Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan
| | - Yoshio Kobayashi
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan
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7
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Funabashi N, Takaoka H, Ozawa K, Tanabe N, Tatsumi K, Saeki N, Higashide T, Uno T, Kobayashi Y. Combined ostium secundum type ASD and pulmonary arterial thromboembolism causing pulmonary artery enlargement, pulmonary hypertension and recurrent paradoxical cerebral embolism due to deep venous thrombosis. Int J Cardiol 2016; 207:303-7. [PMID: 26814633 DOI: 10.1016/j.ijcard.2016.01.178] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2016] [Accepted: 01/12/2016] [Indexed: 11/18/2022]
Affiliation(s)
- Nobusada Funabashi
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan.
| | - Hiroyuki Takaoka
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan
| | - Koya Ozawa
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan
| | - Nobuhiro Tanabe
- Department of Respirology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan
| | - Koichiro Tatsumi
- Department of Respirology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan
| | - Naokatsu Saeki
- Department of Neurological Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan
| | - Takashi Higashide
- Diagnostic Radiology and Radiation Oncology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan
| | - Takashi Uno
- Diagnostic Radiology and Radiation Oncology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan
| | - Yoshio Kobayashi
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan
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Nanba T, Funabashi N, Takahara M, Takaoka H, Ozawa K, Kobayashi Y. Giant pulmonary trunk with Eisenmenger flow through patent ductus arteriosus. Int J Cardiol 2016; 204:248-51. [PMID: 26682956 DOI: 10.1016/j.ijcard.2015.11.142] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Accepted: 11/22/2015] [Indexed: 11/24/2022]
Affiliation(s)
- Toshifumi Nanba
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan
| | - Nobusada Funabashi
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan.
| | - Masayuki Takahara
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan
| | - Hiroyuki Takaoka
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan
| | - Koya Ozawa
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan
| | - Yoshio Kobayashi
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan
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Optical stent-sizes in evaluating patency of coronary lumen surrounded by XIENCE of actual diameters 2.21–2.85mm in 1st-generation 320-slice-CT using Pulsating-Phantom XIENCE phantom study part 5. Int J Cardiol 2016; 202:549-51. [DOI: 10.1016/j.ijcard.2015.09.042] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Accepted: 09/19/2015] [Indexed: 11/15/2022]
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Successful prediction of MACE by myocardial fibrosis on CT in hypertrophic cardiomyopathy patients without obstructed coronary arteries. Int J Cardiol 2015; 199:34-7. [DOI: 10.1016/j.ijcard.2015.06.139] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Accepted: 06/27/2015] [Indexed: 11/17/2022]
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Coronary CT angiography in calcified coronary plaques: Comparison of diagnostic accuracy between bifurcation angle measurement and coronary lumen assessment for diagnosing significant coronary stenosis. Int J Cardiol 2015; 203:78-86. [PMID: 26495804 DOI: 10.1016/j.ijcard.2015.10.079] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 09/21/2015] [Accepted: 10/12/2015] [Indexed: 11/20/2022]
Abstract
BACKGROUND To investigate the diagnostic value of coronary CT angiography (CCTA) by bifurcation angle measurement in the assessment of calcified plaques compared to conventional coronary lumen analysis. METHODS Fifty-three patients with calcified plaques identified on CCTA in the left coronary artery were included in the study. Minimal lumen diameter (MLD) and bifurcation angle between the left anterior descending (LAD) and left circumflex (LCx) arteries were measured and compared between CCTA and invasive coronary angiography (ICA), while the areas under the curves (AUCs) by receiver-operating characteristic curve analysis (ROC) were compared between CCTA and ICA with regard to the diagnostic value of using bifurcation angle as a criterion. RESULTS On a per-vessel assessment, the sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) and 95% confidence interval (CI) with the use of bifurcation angle for determining coronary stenosis were 100% (86%, 100%), 79% (59%, 92%), 81% (62%, 92%), and 100% (85%, 100%) for CCTA, and 100% (86%, 100%), 82% (63%, 94%), 83% (65%, 94%), and 100% (85%, 100%) for ICA, respectively. While the sensitivity and NPV remained unchanged, the specificity and PPV of CCTA by MLD were 33% (21%, 47%) and 43% (31%, 56%). The AUCs by ROC curve analysis for CCTA and ICA bifurcation angle measurements demonstrated no significant difference (p>0.05, 0.79 vs 0.86, and 0.70 vs 0.68 at the LAD and LCx assessment, respectively). CONCLUSION Coronary CT angiography by bifurcation angle measurement shows significant improvement in the diagnosis of calcified plaques with diagnostic value comparable to invasive coronary angiography.
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Funabashi N, Takaoka H, Uehara M, Murayama T, Ozawa K, Kobayashi Y. LAA CT contrast defects correlate with TEE LAA velocity and CHADS₂-score and are a prognostic indicator for embolism in subjects with atrial fibrillation or flutter. Int J Cardiol 2015; 185:297-300. [PMID: 25828668 DOI: 10.1016/j.ijcard.2015.02.051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Accepted: 02/21/2015] [Indexed: 10/23/2022]
Affiliation(s)
- Nobusada Funabashi
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan.
| | - Hiroyuki Takaoka
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan
| | - Masae Uehara
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan
| | - Taichi Murayama
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan
| | - Koya Ozawa
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan
| | - Yoshio Kobayashi
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan
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Yongzhen F, Jeon KH, Doh JH, Koo BK. Noninvasive and Invasive Assessments of the Functional Significance of Intermediate Coronary Artery Stenosis: Is This a Matter of Right or Wrong? Pulse (Basel) 2014; 2:52-6. [PMID: 26587444 DOI: 10.1159/000369837] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Coronary computed tomographic angiography (cCTA) has emerged in recent years as a noninvasive modality to evaluate coronary artery disease. Many studies have revealed the excellent diagnostic accuracy of cCTA when compared with invasive coronary angiography (ICA) or intravascular ultrasound (IVUS). It is generally accepted that the functional significance of coronary artery stenosis is important to make treatment decisions; however, cCTA, ICA, and IVUS are limited in the ability to determine the physiologic significance of coronary stenosis. The FIGURE-OUT study compared the noninvasive and invasive assessment of the functional significance of intermediate coronary artery stenosis.
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Affiliation(s)
- Fan Yongzhen
- Department of Medicine, Seoul National University Hospital, Seoul, Korea ; Xiangtan Central Hospital, Changde, China
| | - Ki-Hyun Jeon
- Department of Medicine, Seoul National University Hospital, Seoul, Korea
| | - Joon-Hyung Doh
- Department of Medicine, Inje University Ilsan Paik Hospital, Goyang, Korea
| | - Bon-Kwon Koo
- Department of Medicine, Seoul National University Hospital, Seoul, Korea
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