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Hauge MG, Linde JJ, Kofoed KF, Ersbøll AS, Johansen M, Sigvardsen PE, Fuchs A, Mikkelsen AP, Gustafsson F, Damm P. Early-onset versus late-onset preeclampsia and risk of coronary atherosclerosis later in life: a clinical follow-up study. Am J Obstet Gynecol MFM 2024:101371. [PMID: 38588914 DOI: 10.1016/j.ajogmf.2024.101371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 03/26/2024] [Accepted: 04/01/2024] [Indexed: 04/10/2024]
Abstract
BACKGROUND Younger women with previous preeclampsia have an increased risk of coronary atherosclerosis. It is unknown if this risk is associated with the time of onset of preeclampsia. OBJECTIVES The aim of the study was to investigate if women with early-onset preeclampsia have a higher risk of coronary atherosclerosis compared to women with late-onset preeclampsia, independent of other perinatal risk factors. STUDY DESIGN A total of 911 women with previous preeclampsia aged 35-55 years participated in a clinical follow-up study, including clinical examination, comprehensive questionnaires, and cardiac computed tomography scan 13 years (range 0-28) after index pregnancy. Early-onset preeclampsia versus late-onset preeclampsia was defined as gestational age at delivery < versus ≥ 34+0 gestational weeks, respectively. The primary outcome of the study was the presence of coronary atherosclerosis on the cardiac computed tomography. A logistic regression analysis was performed to investigate the association between time of onset of preeclampsia, perinatal risk factors and the primary outcome. RESULTS Women with early-onset preeclampsia (N=139) were older (46.2±5.7 vs. 44.4±5.5 years, P<0.001), more likely to have hypertension (51.1% vs. 35.1%, P=<0.001), and had a higher body mass index (27.9±6.3 vs. 26.9±5.5 kg/m2, P=0.051) compared to women with late-onset preeclampsia (N=772) at follow-up. The prevalence of the primary outcome coronary atherosclerosis on the cardiac computed tomography was 28.8% vs. 22.2% (P=0.088) with an adjusted OR=1.74, 95% CI (1.01-3.01), P=0.045 after adjustment for maternal age at index pregnancy, pre-pregnancy body mass index, parity, diabetes in pregnancy, smoking in pregnancy, offspring birth weight and sex, and follow-up length. CONCLUSIONS Women with early-onset preeclampsia had a slightly higher risk of coronary atherosclerosis compared to women with late-onset preeclampsia. However, based on the current evidence it does not seem indicated to limit screening, diagnostic and preventive measures for cardiovascular disease only to women with early-onset preeclampsia.
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Affiliation(s)
- Maria G Hauge
- Department of Obstetrics, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.
| | - Jesper J Linde
- Department of Cardiology, The Heart Centre, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Klaus F Kofoed
- Department of Cardiology, The Heart Centre, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; Department of Radiology, The Diagnostic Center, Rigshospitalet, Copenhagen, University Hospital, Copenhagen, Denmark
| | - Anne S Ersbøll
- Department of Obstetrics, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Marianne Johansen
- Department of Obstetrics, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Per E Sigvardsen
- Department of Obstetrics, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark; Department of Cardiology, The Heart Centre, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Andreas Fuchs
- Department of Cardiology, The Heart Centre, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Anders P Mikkelsen
- Department of Obstetrics, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark; Department of Gynaecology & Obstetrics, Herlev-Gentofte University Hospital, Herlev
| | - Finn Gustafsson
- Department of Cardiology, The Heart Centre, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Peter Damm
- Department of Obstetrics, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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de Knegt MC, Linde JJ, Sigvardsen PE, Engstrøm T, Fuchs A, Jensen AK, Elming H, Kühl JT, Hansen PR, Høfsten DE, Kelbæk H, Nordestgaard BG, Hove JD, Køber LV, Kofoed KF. The importance of nonobstructive plaque characteristics in symptomatic and asymptomatic coronary artery disease. J Cardiovasc Comput Tomogr 2024; 18:203-210. [PMID: 38320905 DOI: 10.1016/j.jcct.2024.01.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 12/08/2023] [Accepted: 01/23/2024] [Indexed: 02/08/2024]
Abstract
BACKGROUND We examined obstructive and nonobstructive plaque volumes in populations with subclinical and clinically manifested coronary artery disease (CAD) using quantitative computed tomography (QCT). METHODS 855 participants with CAD (274 asymptomatic individuals, 254 acute chest pain patients without acute coronary syndrome (ACS), and 327 patients with ACS) underwent QCT of proximal coronary segments to assess participant-level plaque volumes of dense calcium, fibrous, fibrofatty, and necrotic core tissue. RESULTS Nonobstructive (<50% stenosis) plaque volumes were greater than obstructive plaque volumes, irrespective of population (all p<0.0001): Asymptomatic individuals (mean (95% CI)): 218 [190-250] vs. 16 [12-22] mm3; acute chest pain patients without ACS: 300 [263-341] vs. 51 [41-62] mm3; patients with ACS: 370 [332-412] vs. 159 [139-182] mm3. After multivariable adjustment, nonobstructive fibrous and fibrofatty tissue volumes were greater in acute chest pain patients without ACS compared to asymptomatic individuals (fibrous tissue: 122 [107-139] vs. 175 [155-197] mm3, p<0.01; fibrofatty tissue: 44 [38-50] vs. 71 [63-80] mm3, p<0.01. Necrotic core tissue was greater in ACS patients (29 [26-33] mm3) compared to both asymptomatic individuals (15 [13-18] mm3, p<0.0001) and acute chest pain patients without ACS (21 [18-24] mm3, p<0.05). Nonobstructive dense calcium volumes did not differ between the three populations: 29 [24-36], 29 [23-35], and 41 [34-48] mm3, p>0.3 respectively. CONCLUSION Nonobstructive CAD was the predominant contributor to total atherosclerotic plaque volume in both subclinical and clinically manifested CAD. Nonobstructive fibrous, fibrofatty and necrotic core tissue volumes increased with worsening clinical presentation, while nonobstructive dense calcium tissue volumes did not.
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Affiliation(s)
- Martina C de Knegt
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Jesper J Linde
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Per E Sigvardsen
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Thomas Engstrøm
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Andreas Fuchs
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Andreas K Jensen
- Section of Biostatistics, Institute of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Hanne Elming
- Department of Cardiology, Zealand University Hospital, Roskilde, Denmark
| | - J Tobias Kühl
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Peter R Hansen
- Department of Cardiology, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Dan E Høfsten
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Henning Kelbæk
- Department of Cardiology, Zealand University Hospital, Roskilde, Denmark
| | - Børge G Nordestgaard
- Department of Clinical Biochemistry and the Copenhagen General Population Study, Herlev Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Jens D Hove
- Department of Cardiology, Amager and Hvidovre Hospital, University of Copenhagen, Copenhagen, Denmark; Center of Functional Imaging and Research, Copenhagen University Hospital Hvidovre, Copenhagen, Denmark
| | - Lars V Køber
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Klaus F Kofoed
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark; Department of Radiology, The Diagnostic Centre, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark; Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark.
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Møller MB, Linde JJ, Fuchs A, Køber LV, Nordestgaard BG, Kofoed KF. Normal values of myocardial blood flow measured with dynamic myocardial CT perfusion. Eur Heart J Cardiovasc Imaging 2024:jeae050. [PMID: 38376985 DOI: 10.1093/ehjci/jeae050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 01/23/2024] [Accepted: 02/14/2024] [Indexed: 02/22/2024] Open
Abstract
AIMS Dynamic myocardial CT perfusion (DM-CTP) can, in combination with coronary CT angiography (CCTA), provide anatomical and functional evaluation of coronary artery disease (CAD). However, normal values of myocardial blood flow (MBF) are needed to identify impaired myocardial blood supply in patients with suspected CAD.We aimed to establish normal values for MBF measured using DM-CTP, to assess the effects of age and sex, and to assess regional distribution of MBF. METHODS AND RESULTS A total of 82 healthy individuals (46 women) aged 45-78 years with normal coronary arteries by CCTA underwent either rest and adenosine stress DM-CTP (n = 30) or adenosine induced stress DM-CTP only (n = 52). Global and segmental MBF were assessed. Global MBF at rest and during stress were 0.93 ± 0.42 mL/min/g and 3.58 ± 1.14 mL/min/g respectively. MBF was not different between the sexes (P = 0.88 at rest and P = 0.61 during stress) and no correlation was observed between MBF and age (P = 0.08 at rest and P = 0.82 during stress). Among the 16 myocardial segments, significant inter-segmental differences were found (P < 0.01), which was not related to age, sex or coronary dominance. CONCLUSION Myocardial blood flow assessed by DM-CTP in healthy individuals with normal coronary arteries displays significant intersegmental heterogeneity which does not seem to be affected by age, sex or coronary dominance. Normal values of myocardial blood flow may be helpful in the clinical evaluation of suspected myocardial ischemia using DM-CTP.
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Affiliation(s)
- Mathias B Møller
- Department of Cardiology, Rigshospitalet, University of Copenhagen, The Heart Centre, Blegdamsvej 9, 2100 Copenhagen, Denmark
| | - Jesper J Linde
- Department of Cardiology, Rigshospitalet, University of Copenhagen, The Heart Centre, Blegdamsvej 9, 2100 Copenhagen, Denmark
| | - Andreas Fuchs
- Department of Cardiology, Rigshospitalet, University of Copenhagen, The Heart Centre, Blegdamsvej 9, 2100 Copenhagen, Denmark
| | - Lars V Køber
- Department of Cardiology, Rigshospitalet, University of Copenhagen, The Heart Centre, Blegdamsvej 9, 2100 Copenhagen, Denmark
| | - Børge G Nordestgaard
- Department of Clinical Biochemistry and the Copenhagen General Population Study, Herlev and Gentofte Hospital, Copenhagen University Hospital, Borgmester Ib Juuls Vej 73, opgang 7, 2730 Herlev, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, Denmark
| | - Klaus F Kofoed
- Department of Cardiology, Rigshospitalet, University of Copenhagen, The Heart Centre, Blegdamsvej 9, 2100 Copenhagen, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, Denmark
- Department of Radiology, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, 2100 Copenhagen, Denmark
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Højgaard EV, Philbert BT, Linde JJ, Winsløw UC, Svendsen JH, Vinther M, Risum N. Efficacy on resynchronization and longitudinal contractile function comparing His-bundle pacing with conventional biventricular pacing: a substudy to the His-alternative study. Eur Heart J Cardiovasc Imaging 2023; 25:66-74. [PMID: 37490036 DOI: 10.1093/ehjci/jead181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 03/30/2023] [Accepted: 07/15/2023] [Indexed: 07/26/2023] Open
Abstract
AIMS His-bundle pacing has emerged as a novel method to deliver cardiac resynchronization therapy (CRT). However, there are no data comparing conventional biventricular (BiV)-CRT with His-CRT with regard to effects on mechanical dyssynchrony and longitudinal contractile function. METHODS AND RESULTS Patients with symptomatic heart failure, left ventricular ejection fraction ≤ 35%, and left bundle branch block (LBBB) by strict ECG criteria were randomized 1:1 to His-CRT or BiV-CRT. Two-dimensional strain echocardiography was performed prior to CRT implantation and at 6 months after implantation. Differences in changes in mechanical dyssynchrony (standard deviation of time-to-peak in 12 midventricular and basal segments) and regional longitudinal strain in the six left ventricular walls were compared between the BiV-CRT and His-CRT groups.In the on-treatment analysis, 31 received BiV-CRT and 19 His-CRT. In both groups, mechanical dyssynchrony was significantly reduced after 6 months [BiV group from 120 ms (±45) to 63 ms (±22), P < 0.001, and His group from 116 ms (±54) to 49 ms (±11), P < 0.001] but no significant differences in changes could be demonstrated between groups [-9.0 ms (-36; 18), P = 0.50]. Global longitudinal strain (GLS) improved in both groups [BiV group from -9.1% (±2.7) to -10.7% (±2.6), P = 0.02, and His group from -8.6% (±2.1) to -11.1% (±2.0), P < 0.001], but no significant differences in changes could be demonstrated from baseline to follow-up [-0.9% (-2.4; -0.6), P = 0.25] between groups. There were no regional differences between groups. CONCLUSION In heart failure, patients with LBBB, BiV-CRT, and His-CRT have comparable effects with regard to improvements in mechanical dyssynchrony and longitudinal contractile function.
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Affiliation(s)
- E V Højgaard
- Department of Cardiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - B T Philbert
- Department of Cardiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - J J Linde
- Department of Cardiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - U C Winsløw
- Department of Cardiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - J H Svendsen
- Department of Cardiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - M Vinther
- Department of Cardiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - N Risum
- Department of Cardiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
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Kühl JT, Kelbæk H, Linde JJ, Sigvardsen PE, Hansen TF, de Knegt MC, Heitmann M, Hansen PR, Høfsten D, Bang LE, Hove JD, Kragelund C, Abdulla J, Holmvang L, Torp-Pedersen C, Gislason G, Engstrøm T, Køber LV, Kofoed KF. Coronary CT Angiography as a Guide to Timing of Invasive Treatment in Patients With NSTEACS. JACC Cardiovasc Imaging 2023; 16:1353-1355. [PMID: 37178077 DOI: 10.1016/j.jcmg.2023.03.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 02/28/2023] [Accepted: 03/16/2023] [Indexed: 05/15/2023]
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Møller MB, Hasbak P, Linde JJ, Sigvardsen PE, Køber LV, Kofoed KF. Quantification of myocardial blood flow using dynamic myocardial CT perfusion compared with 82Rb PET. J Cardiovasc Comput Tomogr 2023:S1934-5925(23)00093-X. [PMID: 37024395 DOI: 10.1016/j.jcct.2023.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 03/13/2023] [Accepted: 03/20/2023] [Indexed: 04/08/2023]
Abstract
PURPOSE Absolute measures of myocardial blood flow (MBF) obtained with dynamic myocardial CT perfusion (DM-CTP) are underestimated when compared with reference standards. This is to some extent explained by incomplete extraction of iodinated contrast agent (iCA) to the myocardial tissue. We aimed to establish an extraction function for iCA, use the function to calculate MBFCT and to compare this with MBF measured with 82Rb positron emission tomography (PET). MATERIALS AND METHODS Healthy individuals without coronary artery disease (CAD) were examined with 82Rb PET and DM-CTP. The factors a and β of the generalized Renkin-Crone model were estimated using a non-linear least squares model. The factors providing the best fit for the data were subsequently used to calculate MBFCT. RESULTS Of consecutive 91 individuals examined, 79 were eligible for analysis. The factors a and β providing the best fit of the nonlinear least-squares model to the data were a = 0.614 and β = 0.218 (R-squared = 0.81). Conversion of the CT inflow parameter (K1) values using the derived extraction function resulted in a significant correlation between MBF measured during stress using CT and PET (P = 0.039). CONCLUSION In healthy individuals, flow estimates obtained with dynamic myocardial CT perfusion during stress were, after conversion to MBF using the extraction of iodinated CT contrast agent, correlated with absolute MBF quantified with 82Rb PET.
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Affiliation(s)
- Mathias B Møller
- Department of Cardiology, The Heart Centre, Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen, Denmark.
| | - Philip Hasbak
- Department of Nuclear Medicine, Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen, Denmark.
| | - Jesper J Linde
- Department of Cardiology, The Heart Centre, Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen, Denmark.
| | - Per E Sigvardsen
- Department of Cardiology, The Heart Centre, Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen, Denmark.
| | - Lars V Køber
- Department of Cardiology, The Heart Centre, Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen, Denmark.
| | - Klaus F Kofoed
- Department of Cardiology, The Heart Centre, Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen, Denmark; Department of Radiology, Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen, Denmark.
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7
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Ratcovich H, Sadjadieh G, Linde JJ, Joshi FR, Kelbæk H, Kofoed KF, Køber L, Hansen PR, Torp-Pedersen C, Elming H, Gislason GH, Høfsten DE, Engstrøm T, Holmvang L. Coronary CT and timing of invasive coronary angiography in patients ≥75 years old with non-ST segment elevation acute coronary syndromes. Heart 2023; 109:457-463. [PMID: 36351794 DOI: 10.1136/heartjnl-2022-321640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 10/25/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The ability of coronary CT angiography (cCTA) to rule out significant coronary artery disease (CAD) in older patients with non-ST segment elevation acute coronary syndromes (NSTEACS) is unclear since valid cCTA analysis may be limited by extensive coronary artery calcification. In addition, the effect of very early invasive coronary angiography (ICA) with possible revascularisation is debated. METHODS This is a posthoc analysis of patients ≥75 years included in the Very Early vs Standard Care Invasive Examination and Treatment of Patients with Non-ST-Segment Elevation Acute Coronary Syndrome Trial. cCTA was performed prior to the ICA. The diagnostic accuracy of cCTA was investigated. Presence of a coronary artery stenosis ≥50% by subsequent ICA was used as reference. Patients were randomised to a very early (within 12 hours of diagnosis) or a standard ICA (within 48-72 hours of diagnosis). The primary composite endpoint was 5-year all-cause mortality, non-fatal recurrent myocardial infarction or hospital admission for refractory myocardial ischaemia or heart failure. RESULTS Of 452 (21%) patients ≥75 years, 161 (35.6%) underwent cCTA. 19% of cCTAs excluded significant CAD. The negative predictive value (NPV) of cCTA was 94% (95% CI 79 to 99) and the sensitivity 98% (95% CI 94 to 100). No significant differences in the frequency of primary endpoints were seen in patients randomised to very early ICA (at 5-year follow-up, n=100 (46.9%) vs 122 (51.0%), log-rank p=0.357). CONCLUSION In patients ≥75 years with NSTEACS, cCTA before ICA showed a high NPV. A very early ICA <12 hours of diagnosis did not significantly improve long-term clinical outcomes.
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Affiliation(s)
- Hanna Ratcovich
- Rigshospitalet, Department of Cardiology, Copenhagen University Hospital, Copenhagen, Denmark
| | - Golnaz Sadjadieh
- Rigshospitalet, Department of Cardiology, Copenhagen University Hospital, Copenhagen, Denmark
| | - Jesper J Linde
- Rigshospitalet, Department of Cardiology, Copenhagen University Hospital, Copenhagen, Denmark
| | - Francis R Joshi
- Rigshospitalet, Department of Cardiology, Copenhagen University Hospital, Copenhagen, Denmark
| | - Henning Kelbæk
- Department of Cardiology, Zealand University Hospital Roskilde, Roskilde, Denmark
| | - Klaus F Kofoed
- Rigshospitalet, Department of Cardiology, Copenhagen University Hospital, Copenhagen, Denmark
| | - Lars Køber
- Rigshospitalet, Department of Cardiology, Copenhagen University Hospital, Copenhagen, Denmark
| | - Peter Riis Hansen
- Department of Cardiology, Gentofte University Hospital, Hellerup, Denmark
| | - Christian Torp-Pedersen
- Department of Clinical Investigation and Cardiology, Nordsjællands Hospital, Hillerød, Denmark
| | - Hanne Elming
- Department of Cardiology, Zealand University Hospital Roskilde, Roskilde, Denmark
| | | | - Dan Eik Høfsten
- Rigshospitalet, Department of Cardiology, Copenhagen University Hospital, Copenhagen, Denmark
| | - Thomas Engstrøm
- Rigshospitalet, Department of Cardiology, Copenhagen University Hospital, Copenhagen, Denmark
| | - Lene Holmvang
- Rigshospitalet, Department of Cardiology, Copenhagen University Hospital, Copenhagen, Denmark
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Møller MB, Schuijf JD, Oyama-Manabe N, Linde JJ, Kühl JT, Lima JAC, Kofoed KF. Technical Considerations for Dynamic Myocardial Computed Tomography Perfusion as Part of a Comprehensive Evaluation of Coronary Artery Disease Using Computed Tomography. J Thorac Imaging 2023; 38:54-68. [PMID: 36044617 DOI: 10.1097/rti.0000000000000673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Dynamic myocardial computed tomography perfusion (DM-CTP) has good diagnostic accuracy for identifying myocardial ischemia as compared with both invasive and noninvasive reference standards. However, DM-CTP has not yet been implemented in the routine clinical examination of patients with suspected or known coronary artery disease. An important hurdle in the clinical dissemination of the method is the development of the DM-CTP acquisition protocol and image analysis. Therefore, the aim of this article is to provide a review of critical parameters in the design and execution of DM-CTP to optimize each step of the examination and avoid common mistakes. We aim to support potential users in the successful implementation and performance of DM-CTP in daily practice. When performed appropriately, DM-CTP may support clinical decision making. In addition, when combined with coronary computed tomography angiography, it has the potential to shorten the time to diagnosis by providing immediate visualization of both coronary atherosclerosis and its functional relevance using one single modality.
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Affiliation(s)
- Mathias B Møller
- Department of Cardiology, Rigshospitalet, University of Copenhagen, The Heart Centre
| | - Joanne D Schuijf
- Global Research and Development Center, Canon Medical Systems Europe, Zoetermeer, The Netherlands
| | - Noriko Oyama-Manabe
- Department of Radiology, Jichi Medical University Saitama Medical Center, Saitama, Japan
| | - Jesper J Linde
- Department of Cardiology, Rigshospitalet, University of Copenhagen, The Heart Centre
| | - Jørgen T Kühl
- Department of Cardiology, Rigshospitalet, University of Copenhagen, The Heart Centre
| | - Joao A C Lima
- Departments of Medicine and Radiology, Johns Hopkins Hospital and School of Medicine, Baltimore, MD
| | - Klaus F Kofoed
- Department of Cardiology, Rigshospitalet, University of Copenhagen, The Heart Centre
- Department of Radiology, Rigshospitalet, University of Copenhagen
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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9
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Ratcovich H, Sadjadieh G, Linde JJ, Joshi FR, Kelbaek H, Kofoed KF, Koeber LV, Riis Hansen P, Torp-Pedersen C, Elming H, Gislason G, Hoefsten DE, Engstoem T, Holmvang L. The value of coronary computed tomography and very early invasive coronary angiography compared to standard intervention in older patients after non-ST segment elevation acute coronary syndromes. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
The optimal management of patients with non-ST elevation acute coronary syndromes (NSTEACS) remains a challenge. The merits of both computed tomography angiography (CTA) as a rule-out test for significant coronary artery disease and early invasive coronary angiography (ICA) are debated. Furthermore, there are limited data in older NSTEACS patients, who likely have more coronary artery calcification and are at higher risk of ACS-related complications.
Methods
This is a post hoc analysis of patients ≥75 years included in the Very Early Versus Standard Care Invasive Examination and Treatment of Patients with Non-ST-Segment Elevation Acute Coronary Syndrome Trial (VERDICT). The diagnostic accuracy of CTA was investigated in patients without previous coronary artery bypass grafting, renal dysfunction, or atrial fibrillation; the presence of a coronary artery stenosis ≥50% determined by ICA was used as reference. Patients were randomised to very early ICA within 12 hours of diagnosis or standard care (ICA within 48–72 hours of diagnosis) and followed for up to five years. The primary endpoint was the composite of all-cause mortality, nonfatal recurrent MI, hospital admission for refractory myocardial ischaemia or hospital admission for heart failure.
Results
From November 2010 to June 2016, 2147 patients were included in the VERDICT trial. Of these, 452 (21%) patients were ≥75 years of age. Most older patients had a GRACE score >140 (n=388, 88.8%). At the time of admission, older patients had lower levels of haemoglobin, estimated glomerular filtration rate, and left ventricular ejection fraction, and more often displayed elevated troponins and electrocardiogram changes indicating new ischaemia, than those <75 years.
Of patients ≥75 years of age, 161 (35.6%) underwent CTA before ICA. Older patients had significantly higher calcium scores than younger patients (1187±1445 vs. 499±858 Agatston units, p<0.001). 19% of CTAs excluded significant coronary artery disease. The negative predictive value of the CTAs was 94 (95% CI 79–99)% and the sensitivity was 98 (95% CI 94–100)%, figure 1.
The primary endpoint was observed more frequently in patients ≥75 years as compared to younger patients (n=222, 49% vs. n=390, 23%, p<0.001), even after adjustment for allocated treatment (adjusted HR 2.65, 95% CI 2.25–3.13, p<0.001). Among older patients randomised to very early ICA, there were no differences in the cumulated number of primary endpoints compared to older patients randomised to standard ICA (log-rank p=0.36), figure 2.
Conclusion
Among patients ≥75 years old with NSTEACS, CTA showed a high diagnostic accuracy. A very early ICA within 12 hours of diagnosis did not improve long-term composite outcome in these older patients with NSTEACS.
Funding Acknowledgement
Type of funding sources: Foundation. Main funding source(s): Rigshospitalets Research Foundation
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Affiliation(s)
- H Ratcovich
- Rigshospitalet - Copenhagen University Hospital, Department of Cardiology , Copenhagen , Denmark
| | - G Sadjadieh
- Rigshospitalet - Copenhagen University Hospital, Department of Cardiology , Copenhagen , Denmark
| | - J J Linde
- Rigshospitalet - Copenhagen University Hospital, Department of Cardiology , Copenhagen , Denmark
| | - F R Joshi
- Rigshospitalet - Copenhagen University Hospital, Department of Cardiology , Copenhagen , Denmark
| | - H Kelbaek
- Zealand University Hospital, Department of Cardiology , Roskilde , Denmark
| | - K F Kofoed
- Rigshospitalet - Copenhagen University Hospital, Department of Cardiology , Copenhagen , Denmark
| | - L V Koeber
- Rigshospitalet - Copenhagen University Hospital, Department of Cardiology , Copenhagen , Denmark
| | - P Riis Hansen
- Herlev-Gentofte University Hospital, Department of Cardiology , Gentofte , Denmark
| | - C Torp-Pedersen
- Herlev-Gentofte University Hospital, Department of Cardiology , Gentofte , Denmark
| | - H Elming
- Zealand University Hospital, Department of Cardiology , Roskilde , Denmark
| | - G Gislason
- Herlev-Gentofte University Hospital, Department of Cardiology , Gentofte , Denmark
| | - D E Hoefsten
- Rigshospitalet - Copenhagen University Hospital, Department of Cardiology , Copenhagen , Denmark
| | - T Engstoem
- Rigshospitalet - Copenhagen University Hospital, Department of Cardiology , Copenhagen , Denmark
| | - L Holmvang
- Rigshospitalet - Copenhagen University Hospital, Department of Cardiology , Copenhagen , Denmark
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10
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Chua A, Ihdayhid AR, Linde JJ, Sørgaard M, Cameron JD, Seneviratne SK, Ko BS. Diagnostic Performance of CT-Derived Fractional Flow Reserve in Australian Patients Referred for Invasive Coronary Angiography. Heart Lung Circ 2022; 31:1102-1109. [PMID: 35501246 DOI: 10.1016/j.hlc.2022.03.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 11/16/2021] [Accepted: 03/30/2022] [Indexed: 02/07/2023]
Abstract
BACKGROUND Non-invasive computed tomography (CT)-derived fractional flow reserve (FFRCT) is computed from standard coronary CT angiography (CTA) datasets and provides accurate vessel-specific ischaemia assessment of coronary artery disease (CAD). To date, the technique and its diagnostic performance has not been verified in the Australian clinical context. The aim of this study was to describe and compare the diagnostic performance of FFRCT and CTA for the detection of vessel-specific ischaemia as determined by invasive fractional flow reserve (FFR) in the Australian patient population. METHODS One-hundred-and-nine patients (219 vessels) referred for clinically mandated invasive angiography were retrospectively assessed. Each patient underwent research mandated CTA and FFRCT within 3 months of invasive angiography and invasive FFR assessment. Independent core laboratory assessments were made to determine visual CTA stenosis, FFRCT and invasive FFR values. FFRCT values were matched with the corresponding invasive FFR measurement taken at the given wire position. Visual CTA stenosis ≥50%, FFRCT values ≤0.8 and invasive FFR values ≤0.8 were considered significant for ischaemia. RESULTS Per vessel accuracy, sensitivity, specificity, positive predictive value and negative predictive value of FFRCT were 80.4%, 80.0%, 80.6%, 64.9% and 90.0% respectively. Corresponding values for CTA were 75.1%, 87.1%, 69.2%, 58.1% and 91.7% respectively. In receiver operating characteristic curve analysis, FFRCT demonstrated superior area under the curve (AUC) compared with CTA in both per vessel (0.87 vs 0.77, p=0.004) and per patient analysis (0.86 vs 0.74, p=0.011). Per vessel AUC of combined CTA and FFRCT was superior to CTA alone (0.89 vs 0.77, p<0.0001). CONCLUSION In this cohort of Australian patients, the diagnostic performance of FFRCT was found to be comparable to existing international literature, with demonstrated improvement in performance compared with CTA alone for the detection of vessel-specific ischaemia.
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Affiliation(s)
- Alexander Chua
- Monash Cardiovascular Research Centre, Monash University and MonashHEART, Monash Health, Melbourne, Vic, Australia
| | - Abdul-Rahman Ihdayhid
- Monash Cardiovascular Research Centre, Monash University and MonashHEART, Monash Health, Melbourne, Vic, Australia
| | - Jesper J Linde
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Mathias Sørgaard
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - James D Cameron
- Monash Cardiovascular Research Centre, Monash University and MonashHEART, Monash Health, Melbourne, Vic, Australia
| | - Sujith K Seneviratne
- Monash Cardiovascular Research Centre, Monash University and MonashHEART, Monash Health, Melbourne, Vic, Australia
| | - Brian S Ko
- Monash Cardiovascular Research Centre, Monash University and MonashHEART, Monash Health, Melbourne, Vic, Australia.
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11
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Hauge MG, Damm P, Kofoed KF, Ersboell AS, Johansen M, Sigvardsen PE, Fuchs A, Kuhl JT, Nordestgaard BG, Koeber L, Gustafsson F, Linde JJ. Increased prevalence of premature coronary atherosclerosis after preeclampsia. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.2780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Women with preeclampsia have increased risk of manifest coronary artery disease later in life. However, it remains unknown if and when premature coronary atherosclerotic stages can be identified. This knowledge could enable early intervention in women considered at high risk for future manifest coronary artery disease.
Purpose
Using cardiac computed tomography, we aimed to investigate the prevalence of premature coronary atherosclerosis in women with previous preeclampsia in comparison with women from the general population.
Methods
Women, aged 40–55 years, with previous preeclampsia were recruited in the CPH-PRECIOUS study and compared 1:1 with age- and parity-matched women from the CGPS. Both groups underwent a cardiac computed tomography, including a contrast-enhanced coronary computed tomography angiography and a non-contrast coronary artery calcium scoring, as well as an overall assessment of cardiovascular risk factors imbedded in an extensive questionnaire. Cardiac computed tomography examinations were analysed blindly. The main outcome of the study was the prevalence of any coronary atherosclerosis defined as any plaque at coronary computed tomography angiography or a calcium score >0 in case of a non-diagnostic coronary computed tomography angiography.
Results
A total of 1,424 women were included (715 women with previous preeclampsia and 709 controls from the general population). Women with previous preeclampsia were more likely to have cardiovascular risk factors (hypertension, dyslipidaemia, diabetes mellitus). The prevalence of any coronary atherosclerosis was significantly higher in the preeclampsia group (27.4% vs. 20.0%) (P=0.001). A calcium score >0 was also more prevalent in the preeclampsia group (16.6% vs. 11.8%) (P=0.009). Preeclampsia remained an independent risk factor for the presence of any coronary atherosclerosis after adjusting for cardiovascular risk factors (age, hypertension, dyslipidaemia, diabetes, smoking, body mass index, parity) (OR=1.37, 95% CI (1.05–1.79), P=0.021).
Conclusion
Women with previous preeclampsia are more likely show premature signs of coronary atherosclerosis compared with an age- and parity matched control group from the general population. Preeclampsia is an independent risk factor for premature coronary atherosclerosis.
Funding Acknowledgement
Type of funding sources: Foundation. Main funding source(s): The Danish Heart FoundationSkibsreder Per Henriksen, R og Hustrus FondKong Christian den Tiendes FondBrødrene Hartmanns FondHans og Nora Buchards FondArvid Nilssons FondAnita og Tage Therkelsens FondLægefondenAase og Ejnar Danielsens FondHjertecentrets Forskningsudvalg (Rigshospitalet)Direktør Kurt Bønnelycke og Hustru Fru Grethe Bønnelyckes FondLægeforeningens ForskningsfondTorben & Alice Frimodt FondHenry og Astrid Møllers Fond
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Affiliation(s)
- M G Hauge
- Copenhagen University Hospital, Department of Obstetrics, Copenhagen, Denmark
| | - P Damm
- Copenhagen University Hospital, Department of Obstetrics, Copenhagen, Denmark
| | - K F Kofoed
- Copenhagen University Hospital, Department of Cardiology, Copenhagen, Denmark
| | - A S Ersboell
- Copenhagen University Hospital, Department of Obstetrics, Copenhagen, Denmark
| | - M Johansen
- Copenhagen University Hospital, Department of Obstetrics, Copenhagen, Denmark
| | - P E Sigvardsen
- Copenhagen University Hospital, Department of Cardiology, Copenhagen, Denmark
| | - A Fuchs
- Copenhagen University Hospital, Department of Cardiology, Copenhagen, Denmark
| | - J T Kuhl
- Copenhagen University Hospital, Department of Cardiology, Copenhagen, Denmark
| | - B G Nordestgaard
- Herlev and Gentofte Hospital, Department of Clinical Biochemistry, Copenhagen, Denmark
| | - L Koeber
- Copenhagen University Hospital, Department of Cardiology, Copenhagen, Denmark
| | - F Gustafsson
- Copenhagen University Hospital, Department of Cardiology, Copenhagen, Denmark
| | - J J Linde
- Copenhagen University Hospital, Department of Cardiology, Copenhagen, Denmark
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12
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Butt JH, Kofoed KF, Kelbæk H, Hansen PR, Torp-Pedersen C, Høfsten D, Holmvang L, Pedersen F, Bang LE, Sigvardsen PE, Clemmensen P, Linde JJ, Heitmann M, Hove JD, Abdulla J, Gislason G, Engstrøm T, Køber L. Importance of Risk Assessment in Timing of Invasive Coronary Evaluation and Treatment of Patients With Non-ST-Segment-Elevation Acute Coronary Syndrome: Insights From the VERDICT Trial. J Am Heart Assoc 2021; 10:e022333. [PMID: 34585591 PMCID: PMC8649124 DOI: 10.1161/jaha.121.022333] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Background The optimal timing of invasive examination and treatment of high-risk patients with non-ST-segment-elevation acute coronary syndrome has not been established. We investigated the efficacy of early invasive coronary angiography compared with standard-care invasive coronary angiography on the risk of all-cause mortality according to the GRACE (Global Registry of Acute Coronary Events) risk score in a predefined subgroup analysis of the VERDICT (Very Early Versus Deferred Invasive Evaluation Using Computerized Tomography) trial. Methods and Results Patients with clinical suspicion of non-ST-segment-elevation acute coronary syndrome with ECG changes indicating new ischemia and/or elevated troponin, in whom invasive coronary angiography was clinically indicated and deemed logistically feasible within 12 hours, were eligible for inclusion. Patients were randomized 1:1 to an early (≤12 hours) or standard (48-72 hours) invasive strategy. The primary outcome of the present study was all-cause mortality. Of 2147 patients randomized in the VERDICT trial, 2092 patients had an available GRACE risk score. Of these, 1021 (48.8%) patients had a GRACE score >140. During a median follow-up of 4.1 years, 192 (18.8%) and 54 (5.0%) patients died in the high and low GRACE score groups, respectively. The risk of death with the early invasive strategy was increased in patients with a GRACE score ≤140 (hazard ratio [HR], 2.04 [95% CI, 1.16-3.59]), whereas there was a trend toward a decreased risk of death with the early invasive strategy in patients with a GRACE score >140 (HR, 0.83 [95% CI, 0.63-1.10]) (Pinteraction=0.006). Conclusions In patients with non-ST-segment-elevation acute coronary syndrome, we found a significant interaction between timing of invasive coronary angiography and GRACE score on the risk of death. Randomized clinical trials are warranted to establish the efficacy and safety among high-risk and low-risk patients with non-ST-segment-elevation acute coronary syndrome. Registration URL: https://www.clinicaltrials.gov; Unique identifier: NCT02061891.
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Affiliation(s)
- Jawad H Butt
- Department of Cardiology Rigshospitalet Copenhagen University Hospital Copenhagen Denmark
| | - Klaus F Kofoed
- Department of Cardiology Rigshospitalet Copenhagen University Hospital Copenhagen Denmark
| | - Henning Kelbæk
- Department of Cardiology Zealand University Hospital Roskilde Denmark
| | - Peter R Hansen
- Department of Cardiology Herlev-Gentofte University Hospital Hillerød Denmark
| | | | - Dan Høfsten
- Department of Cardiology Rigshospitalet Copenhagen University Hospital Copenhagen Denmark
| | - Lene Holmvang
- Department of Cardiology Rigshospitalet Copenhagen University Hospital Copenhagen Denmark
| | - Frants Pedersen
- Department of Cardiology Rigshospitalet Copenhagen University Hospital Copenhagen Denmark
| | - Lia E Bang
- Department of Cardiology Rigshospitalet Copenhagen University Hospital Copenhagen Denmark
| | - Per E Sigvardsen
- Department of Cardiology Rigshospitalet Copenhagen University Hospital Copenhagen Denmark
| | - Peter Clemmensen
- Department of Regional Research, Clinical Institute Faculty of Health Sciences University of Southern Denmark Odense Denmark.,Department of Cardiology University Heart Center Hamburg, University Clinic Hamburg-Eppendorf Hamburg Germany
| | - Jesper J Linde
- Department of Cardiology Rigshospitalet Copenhagen University Hospital Copenhagen Denmark
| | - Merete Heitmann
- Department of Cardiology Bispebjerg-Frederiksberg Hospital Bispebjerg Denmark
| | | | - Jawdat Abdulla
- Department of Cardiology Glostrup Hospital Copenhagen University Hospital Glostrup Denmark
| | - Gunnar Gislason
- Department of Cardiology Herlev-Gentofte University Hospital Hillerød Denmark
| | - Thomas Engstrøm
- Department of Cardiology Rigshospitalet Copenhagen University Hospital Copenhagen Denmark
| | - Lars Køber
- Department of Cardiology Rigshospitalet Copenhagen University Hospital Copenhagen Denmark
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13
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Kofoed KF, Engstrøm T, Sigvardsen PE, Linde JJ, Torp-Pedersen C, de Knegt M, Hansen PR, Fritz-Hansen T, Bech J, Heitmann M, Nielsen OW, Høfsten D, Kühl JT, Raymond IE, Kristiansen OP, Svendsen IH, Domínguez Vall-Lamora MH, Kragelund C, Hove JD, Jørgensen T, Fornitz GG, Steffensen R, Jurlander B, Abdulla J, Lyngbæk S, Elming H, Therkelsen SK, Jørgensen E, Kløvgaard L, Bang LE, Helqvist S, Galatius S, Pedersen F, Abildgaard U, Clemmensen P, Saunamäki K, Holmvang L, Gislason G, Kelbæk H, Køber LV. Prognostic Value of Coronary CT Angiography in Patients With Non-ST-Segment Elevation Acute Coronary Syndromes. J Am Coll Cardiol 2021; 77:1044-1052. [PMID: 33632478 DOI: 10.1016/j.jacc.2020.12.037] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 12/17/2020] [Accepted: 12/21/2020] [Indexed: 02/02/2023]
Abstract
BACKGROUND Severity and extent of coronary artery disease (CAD) assessed by invasive coronary angiography (ICA) guide treatment and may predict clinical outcome in patients with non-ST-segment elevation acute coronary syndrome (NSTEACS). OBJECTIVES This study tested the hypothesis that coronary computed tomography angiography (CTA) is equivalent to ICA for risk assessment in patients with NSTEACS. METHODS The VERDICT (Very Early Versus Deferred Invasive Evaluation Using Computerized Tomography in Patients With Acute Coronary Syndromes) trial evaluated timing of treatment in relation to outcome in patients with NSTEACS and included a clinically blinded coronary CTA conducted prior to ICA. Severity of CAD was defined as obstructive (coronary stenosis ≥50%) or nonobstructive. Extent of CAD was defined as high risk (obstructive left main or proximal left anterior descending artery stenosis and/or multivessel disease) or non-high risk. The primary endpoint was a composite of all-cause death, nonfatal recurrent myocardial infarction, hospital admission for refractory myocardial ischemia, or heart failure. RESULTS Coronary CTA and ICA were conducted in 978 patients. During a median follow-up time of 4.2 years (interquartile range: 2.7 to 5.5 years), the primary endpoint occurred in 208 patients (21.3%). The rate of the primary endpoint was up to 1.7-fold higher in patients with obstructive CAD compared with in patients with nonobstructive CAD as defined by coronary CTA (hazard ratio [HR]: 1.74; 95% confidence interval [CI]: 1.22 to 2.49; p = 0.002) or ICA (HR: 1.54; 95% CI: 1.13 to 2.11; p = 0.007). In patients with high-risk CAD, the rate of the primary endpoint was 1.5-fold higher compared with the rate in those with non-high-risk CAD as defined by coronary CTA (HR: 1.56; 95% CI: 1.18 to 2.07; p = 0.002). A similar trend was noted for ICA (HR: 1.28; 95% CI: 0.98 to 1.69; p = 0.07). CONCLUSIONS Coronary CTA is equivalent to ICA for the assessment of long-term risk in patients with NSTEACS. (Very Early Versus Deferred Invasive Evaluation Using Computerized Tomography in Patients With Acute Coronary Syndromes [VERDICT]; NCT02061891).
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Affiliation(s)
- Klaus F Kofoed
- Department of Cardiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark; Department of Radiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.
| | - Thomas Engstrøm
- Department of Cardiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Per E Sigvardsen
- Department of Cardiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Jesper J Linde
- Department of Cardiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Christian Torp-Pedersen
- Department of Cardiology, Herlev-Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Martina de Knegt
- Department of Cardiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Peter R Hansen
- Department of Cardiology, Herlev-Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Thomas Fritz-Hansen
- Department of Cardiology, Herlev-Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Jan Bech
- Department of Cardiology, Bispebjerg and Frederiksberg Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Merete Heitmann
- Department of Cardiology, Bispebjerg and Frederiksberg Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Olav W Nielsen
- Department of Cardiology, Bispebjerg and Frederiksberg Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Dan Høfsten
- Department of Cardiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Jørgen T Kühl
- Department of Cardiology, Zealand University Hospital, Roskilde, Slagelse & Holbæk, Denmark
| | - Ilan E Raymond
- Department of Cardiology, Zealand University Hospital, Roskilde, Slagelse & Holbæk, Denmark
| | - Ole P Kristiansen
- Department of Cardiology, Bispebjerg and Frederiksberg Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Ida H Svendsen
- Department of Cardiology, Bispebjerg and Frederiksberg Hospital, University of Copenhagen, Copenhagen, Denmark
| | - M H Domínguez Vall-Lamora
- Department of Cardiology, Bispebjerg and Frederiksberg Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Charlotte Kragelund
- Department of Cardiology, Herlev-Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Jens D Hove
- Department of Cardiology, Hvidovre and Amager Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Tem Jørgensen
- Department of Cardiology, Hvidovre and Amager Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Gitte G Fornitz
- Department of Cardiology, Hvidovre and Amager Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Rolf Steffensen
- Department of Cardiology, Hillerød Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Birgit Jurlander
- Department of Cardiology, Hillerød Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Jawdat Abdulla
- Department of Cardiology, Hvidovre and Amager Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Stig Lyngbæk
- Department of Cardiology, Glostrup Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Hanne Elming
- Department of Cardiology, Zealand University Hospital, Roskilde, Slagelse & Holbæk, Denmark
| | - Susette K Therkelsen
- Department of Cardiology, Zealand University Hospital, Roskilde, Slagelse & Holbæk, Denmark
| | - Erik Jørgensen
- Department of Cardiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Lene Kløvgaard
- Department of Cardiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Lia E Bang
- Department of Cardiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Steffen Helqvist
- Department of Cardiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Søren Galatius
- Department of Cardiology, Herlev-Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Frants Pedersen
- Department of Cardiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Ulrik Abildgaard
- Department of Cardiology, Herlev-Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Peter Clemmensen
- Department of Cardiology, University Heart and Vascular Center Hamburg, University Clinic Hamburg-Eppendorf, Hamburg, Germany; Department of Medicine, Nykoebing F Hospital, Institute of Regional Health Research, University of Southern Denmark, Odense, Denmark
| | - Kari Saunamäki
- Department of Cardiology, Herlev-Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Lene Holmvang
- Department of Cardiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Gunnar Gislason
- Department of Cardiology, Herlev-Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Henning Kelbæk
- Department of Cardiology, Zealand University Hospital, Roskilde, Slagelse & Holbæk, Denmark
| | - Lars V Køber
- Department of Cardiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
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14
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Linde JJ, Kelbæk H, Hansen TF, Sigvardsen PE, Torp-Pedersen C, Bech J, Heitmann M, Nielsen OW, Høfsten D, Kühl JT, Raymond IE, Kristiansen OP, Svendsen IH, Vall-Lamora MHD, Kragelund C, de Knegt M, Hove JD, Jørgensen T, Fornitz GG, Steffensen R, Jurlander B, Abdulla J, Lyngbæk S, Elming H, Therkelsen SK, Jørgensen E, Kløvgaard L, Bang LE, Hansen PR, Helqvist S, Galatius S, Pedersen F, Abildgaard U, Clemmensen P, Saunamäki K, Holmvang L, Engstrøm T, Gislason G, Køber LV, Kofoed KF. Coronary CT Angiography in Patients With Non-ST-Segment Elevation Acute Coronary Syndrome. J Am Coll Cardiol 2020; 75:453-463. [PMID: 32029126 DOI: 10.1016/j.jacc.2019.12.012] [Citation(s) in RCA: 99] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 12/02/2019] [Accepted: 12/03/2019] [Indexed: 10/25/2022]
Abstract
BACKGROUND In patients with non-ST-segment elevation acute coronary syndrome (NSTEACS), coronary pathology may range from structurally normal vessels to severe coronary artery disease. OBJECTIVES The purpose of this study was to test if coronary computed tomography angiography (CTA) may be used to exclude coronary artery stenosis ≥50% in patients with NSTEACS. METHODS The VERDICT (Very Early Versus Deferred Invasive Evaluation Using Computerized Tomography in Patients With Acute Coronary Syndromes) trial (NCT02061891) evaluated the outcome of patients with confirmed NSTEACS randomized 1:1 to very early (within 12 h) or standard (48 to 72 h) invasive coronary angiography (ICA). As an observational component of the trial, a clinically blinded coronary CTA was conducted prior to ICA in both groups. The primary endpoint was the ability of coronary CTA to rule out coronary artery stenosis (≥50% stenosis) in the entire population, expressed as the negative predictive value (NPV), using ICA as the reference standard. RESULTS Coronary CTA was conducted in 1,023 patients-very early, 2.5 h (interquartile range [IQR]: 1.8 to 4.2 h), n = 583; and standard, 59.9 h (IQR: 38.9 to 86.7 h); n = 440 after the diagnosis of NSTEACS was made. A coronary stenosis ≥50% was found by coronary CTA in 68.9% and by ICA in 67.4% of the patients. Per-patient NPV of coronary CTA was 90.9% (95% confidence interval [CI]: 86.8% to 94.1%) and the positive predictive value, sensitivity, and specificity were 87.9% (95% CI: 85.3% to 90.1%), 96.5% (95% CI: 94.9% to 97.8%) and 72.4% (95% CI: 67.2% to 77.1%), respectively. NPV was not influenced by patient characteristics or clinical risk profile and was similar in the very early and the standard strategy group. CONCLUSIONS Coronary CTA has a high diagnostic accuracy to rule out clinically significant coronary artery disease in patients with NSTEACS.
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Affiliation(s)
- Jesper J Linde
- Department of Cardiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Henning Kelbæk
- Department of Cardiology, Zealand University Hospital, Roskilde, Slagelse & Holbæk, Roskilde, Denmark
| | - Thomas F Hansen
- Department of Cardiology, Herlev-Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Per E Sigvardsen
- Department of Cardiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Christian Torp-Pedersen
- Department of Cardiology, Herlev-Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Jan Bech
- Department of Cardiology, Bispebjerg and Frederiksberg Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Merete Heitmann
- Department of Cardiology, Bispebjerg and Frederiksberg Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Olav W Nielsen
- Department of Cardiology, Bispebjerg and Frederiksberg Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Dan Høfsten
- Department of Cardiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Jørgen T Kühl
- Department of Cardiology, Zealand University Hospital, Roskilde, Slagelse & Holbæk, Roskilde, Denmark
| | - Ilan E Raymond
- Department of Cardiology, Bispebjerg and Frederiksberg Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Ole P Kristiansen
- Department of Cardiology, Bispebjerg and Frederiksberg Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Ida H Svendsen
- Department of Cardiology, Bispebjerg and Frederiksberg Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Maria H D Vall-Lamora
- Department of Cardiology, Bispebjerg and Frederiksberg Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Charlotte Kragelund
- Department of Cardiology, Herlev-Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Martina de Knegt
- Department of Cardiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Jens D Hove
- Department of Cardiology, Hvidovre and Amager Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Tem Jørgensen
- Department of Cardiology, Hvidovre and Amager Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Gitte G Fornitz
- Department of Cardiology, Hvidovre and Amager Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Rolf Steffensen
- Department of Cardiology, Hillerød Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Birgit Jurlander
- Department of Cardiology, Hillerød Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Jawdat Abdulla
- Department of Cardiology, Glostrup Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Stig Lyngbæk
- Department of Cardiology, Glostrup Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Hanne Elming
- Department of Cardiology, Zealand University Hospital, Roskilde, Slagelse & Holbæk, Roskilde, Denmark
| | - Susette K Therkelsen
- Department of Cardiology, Zealand University Hospital, Roskilde, Slagelse & Holbæk, Roskilde, Denmark
| | - Erik Jørgensen
- Department of Cardiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Lene Kløvgaard
- Department of Cardiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Lia Evi Bang
- Department of Cardiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Peter Riis Hansen
- Department of Cardiology, Herlev-Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Steffen Helqvist
- Department of Cardiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Søren Galatius
- Department of Cardiology, Herlev-Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Frants Pedersen
- Department of Cardiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Ulrik Abildgaard
- Department of Cardiology, Herlev-Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Peter Clemmensen
- Department of General and Interventional Cardiology, University Heart Center Hamburg, University Clinic Hamburg-Eppendorf, Hamburg, Germany
| | - Kari Saunamäki
- Department of Cardiology, Herlev-Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Lene Holmvang
- Department of Cardiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Thomas Engstrøm
- Department of Cardiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Gunnar Gislason
- Department of Cardiology, Herlev-Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Lars V Køber
- Department of Cardiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Klaus F Kofoed
- Department of Cardiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.
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15
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Ko BS, Linde JJ, Ihdayhid AR, Norgaard BL, Kofoed KF, Sørgaard M, Adams D, Crossett M, Cameron JD, Seneviratne SK. Non-invasive CT-derived fractional flow reserve and static rest and stress CT myocardial perfusion imaging for detection of haemodynamically significant coronary stenosis. Int J Cardiovasc Imaging 2019; 35:2103-2112. [PMID: 31273632 PMCID: PMC6805817 DOI: 10.1007/s10554-019-01658-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 06/24/2019] [Indexed: 12/25/2022]
Abstract
Computed tomography derived fractional flow reserve (FFRCT) and computed tomography stress myocardial perfusion imaging (CTP) are techniques to assess haemodynamic significance of coronary stenosis. To compare the diagnostic performance of FFRCT and static rest/stress CTP in detecting fractional flow reserve (FFR) defined haemodynamically-significant stenosis (FFR ≤ 0.8). Fifty-one patients (96 vessels) with suspected coronary artery disease from a single institution planned for elective invasive-angiography prospectively underwent research indicated 320-detector-CT-coronary-angiography (CTA) and adenosine-stress CTP and invasive FFR. Analyses were performed in separate core-laboratories for FFRCT and CTP blinded to FFR results. Myocardial perfusion was assessed visually and semi-quantitatively by transmural perfusion ratio (TPR). Invasive FFR ≤ 0.8 was present in 33% of vessels and 49% of patients. FFRCT, visual CTP and TPR analysis was feasible in 96%, 92% and 92% of patients respectively. Overall per-vessel sensitivity, specificity and diagnostic accuracy for FFRCT were 81%, 85%, 84%, for visual CTP were 50%, 89%, 75% and for TPR were 69%, 48%, 56% respectively. Receiver-operating-characteristics curve analysis demonstrated larger per vessel area-under-curve (AUC) for FFRCT (0.89) compared with visual CTP (0.70; p < 0.001), TPR (0.58; p < 0.001) and CTA (0.70; p = 0.0007); AUC for CTA + FFRCT (0.91) was higher than CTA + visual CTP (0.77, p = 0.008) and CTA + TPR (0.74, p < 0.001). Per-patient AUC for FFRCT (0.90) was higher than visual CTP (0.69; p = 0.0016), TPR (0.56; p < 0.0001) and CTA (0.68; p = 0.001). Based on this selected cohort of patients FFRCT is superior to visually and semi-quantitatively assessed static rest/stress CTP in detecting haemodynamically-significant coronary stenosis as determined on invasive FFR.
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Affiliation(s)
- Brian S Ko
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, Clayton, VIC, Australia.
| | - Jesper J Linde
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Abdul-Rahman Ihdayhid
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, Clayton, VIC, Australia
| | - Bjarne L Norgaard
- Department of Cardiology, Aarhus University Hospital, Skejby, Aarhus, Denmark
| | - Klaus F Kofoed
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Mathias Sørgaard
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Daniel Adams
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, Clayton, VIC, Australia
| | - Marcus Crossett
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, Clayton, VIC, Australia
| | - James D Cameron
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, Clayton, VIC, Australia
| | - Sujith K Seneviratne
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, Clayton, VIC, Australia
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de Knegt MC, Haugen M, Linde JJ, Kühl JT, Nordestgaard BG, Køber LV, Hove JD, Kofoed KF. Reproducibility of quantitative coronary computed tomography angiography in asymptomatic individuals and patients with acute chest pain. PLoS One 2018; 13:e0207980. [PMID: 30550593 PMCID: PMC6294364 DOI: 10.1371/journal.pone.0207980] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 11/11/2018] [Indexed: 12/21/2022] Open
Abstract
Purpose Quantitative computed tomography (QCT) provides important prognostic information of coronary atherosclerosis. We investigated intraobserver and interobserver QCT reproducibility in asymptomatic individuals, patients with acute chest pain without acute coronary syndrome (ACS), and patients with acute chest pain and ACS. Methods Fifty patients from each cohort, scanned between 01/02/2010-14/11/2013 and matched according to age and gender, were retrospectively assessed for inclusion. Patients with no coronary artery disease, previous coronary artery bypass graft surgery, and poor image quality were excluded. Coronary atherosclerosis was measured semi-automatically by 2 readers. Reproducibility of minimal lumen area (MLA), minimal lumen diameter (MLD), area stenosis, diameter stenosis, vessel remodeling, plaque eccentricity, plaque burden, and plaque volumes was assessed using concordance correlation coefficient (CCC), Bland-Altman, coefficient of variation, and Cohen’s kappa. Results A total of 84 patients (63 matched) were included. Intraobserver and interobserver reproducibility estimates were acceptable for MLA (CCC = 0.94 and CCC = 0.91, respectively), MLD (CCC = 0.92 and CCC = 0.86, respectively), plaque burden (CCC = 0.86 and CCC = 0.80, respectively), and plaque volume (CCC = 0.97 and CCC = 0.95, respectively). QCT detected area and diameter stenosis ≥50%, positive remodeling, and eccentric plaque with moderate-good intraobserver and interobserver reproducibility (kappa: 0.64–0.66, 0.69–0.76, 0.46–0.48, and 0.41–0.62, respectively). Reproducibility of plaque composition decreased with decreasing plaque density (intraobserver and interobserver CCC for dense calcium (>0.99; 0.98), fibrotic (0.96; 0.93), fibro-fatty (0.95; 0.91), and necrotic core tissue (0.89; 0.84). Reproducibility generally decreased with worsening clinical risk profile. Conclusions Semi-automated QCT of coronary plaque morphology is reproducible, albeit with some decline in reproducibility with worsening patient risk profile.
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Affiliation(s)
- Martina C. de Knegt
- Department of Cardiology, Rigshospitalet, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
- Department of Cardiology, Hvidovre Hospital, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
- * E-mail:
| | - Morten Haugen
- Department of Cardiology, Rigshospitalet, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jesper J. Linde
- Department of Cardiology, Rigshospitalet, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jørgen Tobias Kühl
- Department of Cardiology, Rigshospitalet, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Børge G. Nordestgaard
- Department of Clinical Biochemistry, Herlev Hospital, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Lars V. Køber
- Department of Cardiology, Rigshospitalet, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jens D. Hove
- Department of Cardiology, Hvidovre Hospital, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Klaus F. Kofoed
- Department of Cardiology, Rigshospitalet, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
- Department of Radiology, Rigshospitalet, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
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Kofoed KF, Kelbæk H, Hansen PR, Torp-Pedersen C, Høfsten D, Kløvgaard L, Holmvang L, Helqvist S, Jørgensen E, Galatius S, Pedersen F, Bang L, Saunamaki K, Clemmensen P, Linde JJ, Heitmann M, Wendelboe Nielsen O, Raymond IE, Kristiansen OP, Svendsen IH, Bech J, Dominguez Vall-Lamora MH, Kragelund C, Hansen TF, Dahlgaard Hove J, Jørgensen T, Fornitz GG, Steffensen R, Jurlander B, Abdulla J, Lyngbæk S, Elming H, Therkelsen SK, Abildgaard U, Jensen JS, Gislason G, Køber LV, Engstrøm T. Early Versus Standard Care Invasive Examination and Treatment of Patients With Non-ST-Segment Elevation Acute Coronary Syndrome. Circulation 2018; 138:2741-2750. [DOI: 10.1161/circulationaha.118.037152] [Citation(s) in RCA: 118] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Klaus F. Kofoed
- Department of Cardiology, The Heart Centre, Rigshospitalet (K.F.K., D.H., L.K., L.H., S.H., E.J., F.P., L.B., K.S., P.C., J.J.L., L.V.K., T.E.), University of Copenhagen, Denmark
| | - Henning Kelbæk
- Department of Cardiology, Zealand University Hospital, Roskilde, Denmark (H.K., H.E., S.K.T.)
| | - Peter Riis Hansen
- Department of Cardiology, Herlev and Gentofte Hospitals (P.R.H., C.T.-P., S.G., J.B., C.K., T.F.H., U.A., J.S.J., G.G.), University of Copenhagen, Denmark
| | - Christian Torp-Pedersen
- Department of Cardiology, Herlev and Gentofte Hospitals (P.R.H., C.T.-P., S.G., J.B., C.K., T.F.H., U.A., J.S.J., G.G.), University of Copenhagen, Denmark
| | - Dan Høfsten
- Department of Cardiology, The Heart Centre, Rigshospitalet (K.F.K., D.H., L.K., L.H., S.H., E.J., F.P., L.B., K.S., P.C., J.J.L., L.V.K., T.E.), University of Copenhagen, Denmark
| | - Lene Kløvgaard
- Department of Cardiology, The Heart Centre, Rigshospitalet (K.F.K., D.H., L.K., L.H., S.H., E.J., F.P., L.B., K.S., P.C., J.J.L., L.V.K., T.E.), University of Copenhagen, Denmark
| | - Lene Holmvang
- Department of Cardiology, The Heart Centre, Rigshospitalet (K.F.K., D.H., L.K., L.H., S.H., E.J., F.P., L.B., K.S., P.C., J.J.L., L.V.K., T.E.), University of Copenhagen, Denmark
| | - Steffen Helqvist
- Department of Cardiology, The Heart Centre, Rigshospitalet (K.F.K., D.H., L.K., L.H., S.H., E.J., F.P., L.B., K.S., P.C., J.J.L., L.V.K., T.E.), University of Copenhagen, Denmark
| | - Erik Jørgensen
- Department of Cardiology, The Heart Centre, Rigshospitalet (K.F.K., D.H., L.K., L.H., S.H., E.J., F.P., L.B., K.S., P.C., J.J.L., L.V.K., T.E.), University of Copenhagen, Denmark
| | - Søren Galatius
- Department of Cardiology, Herlev and Gentofte Hospitals (P.R.H., C.T.-P., S.G., J.B., C.K., T.F.H., U.A., J.S.J., G.G.), University of Copenhagen, Denmark
| | - Frants Pedersen
- Department of Cardiology, The Heart Centre, Rigshospitalet (K.F.K., D.H., L.K., L.H., S.H., E.J., F.P., L.B., K.S., P.C., J.J.L., L.V.K., T.E.), University of Copenhagen, Denmark
| | - Lia Bang
- Department of Cardiology, The Heart Centre, Rigshospitalet (K.F.K., D.H., L.K., L.H., S.H., E.J., F.P., L.B., K.S., P.C., J.J.L., L.V.K., T.E.), University of Copenhagen, Denmark
| | - Kari Saunamaki
- Department of Cardiology, The Heart Centre, Rigshospitalet (K.F.K., D.H., L.K., L.H., S.H., E.J., F.P., L.B., K.S., P.C., J.J.L., L.V.K., T.E.), University of Copenhagen, Denmark
| | - Peter Clemmensen
- Department of Cardiology, The Heart Centre, Rigshospitalet (K.F.K., D.H., L.K., L.H., S.H., E.J., F.P., L.B., K.S., P.C., J.J.L., L.V.K., T.E.), University of Copenhagen, Denmark
| | - Jesper J. Linde
- Department of Cardiology, The Heart Centre, Rigshospitalet (K.F.K., D.H., L.K., L.H., S.H., E.J., F.P., L.B., K.S., P.C., J.J.L., L.V.K., T.E.), University of Copenhagen, Denmark
| | - Merete Heitmann
- Department of Cardiology, Bispebjerg and Frederiksberg Hospitals (M.H., O.W.N., I.E.R., O.P.K., I.H.S., M.H.D.V.-L.), University of Copenhagen, Denmark
| | - Olav Wendelboe Nielsen
- Department of Cardiology, Bispebjerg and Frederiksberg Hospitals (M.H., O.W.N., I.E.R., O.P.K., I.H.S., M.H.D.V.-L.), University of Copenhagen, Denmark
| | - Ilan E. Raymond
- Department of Cardiology, Bispebjerg and Frederiksberg Hospitals (M.H., O.W.N., I.E.R., O.P.K., I.H.S., M.H.D.V.-L.), University of Copenhagen, Denmark
| | - Ole Peter Kristiansen
- Department of Cardiology, Bispebjerg and Frederiksberg Hospitals (M.H., O.W.N., I.E.R., O.P.K., I.H.S., M.H.D.V.-L.), University of Copenhagen, Denmark
| | - Ida Hastrup Svendsen
- Department of Cardiology, Bispebjerg and Frederiksberg Hospitals (M.H., O.W.N., I.E.R., O.P.K., I.H.S., M.H.D.V.-L.), University of Copenhagen, Denmark
| | - Jan Bech
- Department of Cardiology, Herlev and Gentofte Hospitals (P.R.H., C.T.-P., S.G., J.B., C.K., T.F.H., U.A., J.S.J., G.G.), University of Copenhagen, Denmark
| | - Maria Helena Dominguez Vall-Lamora
- Department of Cardiology, Bispebjerg and Frederiksberg Hospitals (M.H., O.W.N., I.E.R., O.P.K., I.H.S., M.H.D.V.-L.), University of Copenhagen, Denmark
| | - Charlotte Kragelund
- Department of Cardiology, Herlev and Gentofte Hospitals (P.R.H., C.T.-P., S.G., J.B., C.K., T.F.H., U.A., J.S.J., G.G.), University of Copenhagen, Denmark
| | - Thomas Fritz Hansen
- Department of Cardiology, Herlev and Gentofte Hospitals (P.R.H., C.T.-P., S.G., J.B., C.K., T.F.H., U.A., J.S.J., G.G.), University of Copenhagen, Denmark
| | - Jens Dahlgaard Hove
- Department of Cardiology, Hvidovre and Amager Hospitals (J.D.H., T.J., G.G.F.), University of Copenhagen, Denmark
| | - Tem Jørgensen
- Department of Cardiology, Hvidovre and Amager Hospitals (J.D.H., T.J., G.G.F.), University of Copenhagen, Denmark
| | - Gitte G. Fornitz
- Department of Cardiology, Hvidovre and Amager Hospitals (J.D.H., T.J., G.G.F.), University of Copenhagen, Denmark
| | - Rolf Steffensen
- Department of Cardiology, Hillerød Hospital (R.S., B.J.), University of Copenhagen, Denmark
| | - Birgit Jurlander
- Department of Cardiology, Hillerød Hospital (R.S., B.J.), University of Copenhagen, Denmark
| | - Jawdat Abdulla
- Department of Cardiology, Glostrup Hospital (J.A., S.L.), University of Copenhagen, Denmark
| | - Stig Lyngbæk
- Department of Cardiology, Glostrup Hospital (J.A., S.L.), University of Copenhagen, Denmark
| | - Hanne Elming
- Department of Cardiology, Zealand University Hospital, Roskilde, Denmark (H.K., H.E., S.K.T.)
| | | | - Ulrik Abildgaard
- Department of Cardiology, Herlev and Gentofte Hospitals (P.R.H., C.T.-P., S.G., J.B., C.K., T.F.H., U.A., J.S.J., G.G.), University of Copenhagen, Denmark
| | - Jan Skov Jensen
- Department of Cardiology, Herlev and Gentofte Hospitals (P.R.H., C.T.-P., S.G., J.B., C.K., T.F.H., U.A., J.S.J., G.G.), University of Copenhagen, Denmark
| | - Gunnar Gislason
- Department of Cardiology, Herlev and Gentofte Hospitals (P.R.H., C.T.-P., S.G., J.B., C.K., T.F.H., U.A., J.S.J., G.G.), University of Copenhagen, Denmark
| | - Lars V. Køber
- Department of Cardiology, The Heart Centre, Rigshospitalet (K.F.K., D.H., L.K., L.H., S.H., E.J., F.P., L.B., K.S., P.C., J.J.L., L.V.K., T.E.), University of Copenhagen, Denmark
| | - Thomas Engstrøm
- Department of Cardiology, The Heart Centre, Rigshospitalet (K.F.K., D.H., L.K., L.H., S.H., E.J., F.P., L.B., K.S., P.C., J.J.L., L.V.K., T.E.), University of Copenhagen, Denmark
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18
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de Knegt MC, Linde JJ, Fuchs A, Pham MHC, Jensen AK, Nordestgaard BG, Kelbæk H, Køber LV, Heitmann M, Fornitz G, Hove JD, Kofoed KF, Kofoed KF, Nordestgaard B, Køber LV, Kühl JT, Fuchs A, Sigvardsen P, Sørgaard M, de Knegt MC, Norsk J, Frestad D, Mejdahl M, Elming M, Sørensen SK, Hindsøe L, Thomsen AF, Udholm PM, Pihl C, Nilsson J, Byrne C, Knudsen AD, Haugen M, Windfeld-Mathiasen J, Wiegandt YTL, Pham MHC, Ballegaard C, Arnaa K, Møller C, Thrysøe K, Linde JJ, Kofoed KF, Hove JD, Jensen GB, Sørgaard M, Kelbæk H, Kühl JT, Nielsen W, Køber LV, Trysøe K, Møller C, Bock-Pedersen T, Hansen B, Udholm PM, de Knegt MC, Kofoed KF, Køber LV, Kløvgaard L, Linde JJ, Kühl JT, Holmvang L, Engstrøm T, Helquist S, Jørgensen E, Petersen F, Saunamaki K, Clemmensen P, de Knegt MC, Sadjadieh G, Laursen PN, Hansen PR, Gislason G, Abildgaard U, Jensen JS, Galatius S, Fritz-Hansen T, Bech J, Wachtell C, Madsen JK, Smedegaard L, Özcan C, Svendsen IH, Nielsen OW, Kristiansen O, Bjerre AF, Hove JD, Nielsen W, Dixen U, Madsen JK, Fornitz GG, Raymond I, Abdulla J, Lyngbæk; S, Steffensen R, Jurlander B, Kragelund C, Dominguez H, Schou M, Kelbæk H, Elming H, Therkelsen S. Relationship between patient presentation and morphology of coronary atherosclerosis by quantitative multidetector computed tomography. Eur Heart J Cardiovasc Imaging 2018; 20:1221-1230. [DOI: 10.1093/ehjci/jey146] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 09/11/2018] [Indexed: 12/13/2022] Open
Abstract
Abstract
Aims
Quantitative computed tomography (QCT) allows assessment of morphological features of coronary atherosclerosis. We aimed to test the hypothesis that clinical patient presentation is associated with distinct morphological features of coronary atherosclerosis.
Methods and results
A total of 1652 participants, representing a spectrum of clinical risk profiles [787 asymptomatic individuals from the general population, 468 patients with acute chest pain without acute coronary syndrome (ACS), and 397 patients with acute chest pain and ACS], underwent multidetector computed tomography. Of these, 274 asymptomatic individuals, 254 patients with acute chest pain without ACS, and 327 patients with acute chest pain and ACS underwent QCT to assess coronary plaque volumes and proportions of dense calcium (DC), fibrous, fibro fatty (FF), and necrotic core (NC) tissue. Furthermore, the presence of vulnerable plaques, defined by plaque volume and tissue composition, was examined. Coronary plaque volume increased significantly with worsening clinical risk profile [geometric mean (95% confidence interval): 148 (129–166) mm3, 257 (224–295) mm3, and 407 (363–457) mm3, respectively, P < 0.001]. Plaque composition differed significantly across cohorts, P < 0.0001. The proportion of DC decreased, whereas FF and NC increased with worsening clinical risk profile (mean proportions DC: 33%, 23%, 23%; FF: 50%, 61%, 57%; and NC: 17%, 17%, 20%, respectively). Significant differences in plaque composition persisted after multivariable adjustment for age, gender, body surface area, hypertension, statin use at baseline, diabetes, smoking, family history of ischaemic heart disease, total plaque volume, and tube voltage, P < 0.01.
Conclusion
Coronary atherosclerotic plaque volume and composition are strongly associated to clinical presentation.
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Affiliation(s)
- Martina C de Knegt
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, Copenhagen, Denmark
- Department of Cardiology, Amager-Hvidovre Hospital, University of Copenhagen, Kettegård Allé 30, Hvidovre, Copenhagen, Denmark
| | - Jesper J Linde
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, Copenhagen, Denmark
| | - Andreas Fuchs
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, Copenhagen, Denmark
| | - Michael H C Pham
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, Copenhagen, Denmark
| | - Andreas K Jensen
- Section of Biostatistics, Department of Public Health, University of Copenhagen, Øster Farimagsgade 5, Copenhagen, Denmark
| | - Børge G Nordestgaard
- Department of Clinical Biochemistry and the Copenhagen General Population Study, Herlev Hospital, University of Copenhagen, Herlev Ringvej 75, Herlev, Copenhagen, Denmark
| | - Henning Kelbæk
- Department of Cardiology, Zealand University Hospital, Sygehusvej 10, Roskilde, Denmark
| | - Lars V Køber
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, Copenhagen, Denmark
| | - Merete Heitmann
- Department of Cardiology, Bispebjerg Hospital, University of Copenhagen, Bispebjerg Bakke 23, Copenhagen, Denmark
| | - Gitte Fornitz
- Department of Cardiology, Amager-Hvidovre Hospital, University of Copenhagen, Kettegård Allé 30, Hvidovre, Copenhagen, Denmark
| | - Jens D Hove
- Department of Cardiology, Amager-Hvidovre Hospital, University of Copenhagen, Kettegård Allé 30, Hvidovre, Copenhagen, Denmark
| | - Klaus F Kofoed
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, Copenhagen, Denmark
- Department of Radiology, The Diagnostic Centre, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, Copenhagen, Denmark
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Ihdayhid AR, Sakaguchi T, Linde JJ, Sørgaard MH, Kofoed KF, Fujisawa Y, Hislop-Jambrich J, Nerlekar N, Cameron JD, Munnur RK, Crosset M, Wong DTL, Seneviratne SK, Ko BS. Performance of computed tomography-derived fractional flow reserve using reduced-order modelling and static computed tomography stress myocardial perfusion imaging for detection of haemodynamically significant coronary stenosis. Eur Heart J Cardiovasc Imaging 2018; 19:1234-1243. [DOI: 10.1093/ehjci/jey114] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Accepted: 07/19/2018] [Indexed: 01/10/2023] Open
Affiliation(s)
- Abdul Rahman Ihdayhid
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, 246 Clayton Road, Clayton, Victoria, Australia
| | - Takuya Sakaguchi
- Toshiba Medical Systems Corporation, 1385 Shimoishigami, Otawara-shi, Tochigi, Japan
| | - Jesper J Linde
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, Copenhagen E, Denmark
| | - Mathias H Sørgaard
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, Copenhagen E, Denmark
| | - Klaus F Kofoed
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, Copenhagen E, Denmark
| | - Yasuko Fujisawa
- Toshiba Medical Systems Corporation, 1385 Shimoishigami, Otawara-shi, Tochigi, Japan
| | - Jacqui Hislop-Jambrich
- Toshiba Medical Australia and New Zealand, North Ryde, Level 2, Building C, 12-24 Talavera Road, North Ryde NSW, Australia
| | - Nitesh Nerlekar
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, 246 Clayton Road, Clayton, Victoria, Australia
| | - James D Cameron
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, 246 Clayton Road, Clayton, Victoria, Australia
| | - Ravi K Munnur
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, 246 Clayton Road, Clayton, Victoria, Australia
| | - Marcus Crosset
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, 246 Clayton Road, Clayton, Victoria, Australia
| | - Dennis T L Wong
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, 246 Clayton Road, Clayton, Victoria, Australia
- South Australian Health & Medical Research Institute, North Terrace, Adelaide, Australia
| | - Sujith K Seneviratne
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, 246 Clayton Road, Clayton, Victoria, Australia
| | - Brian S Ko
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, 246 Clayton Road, Clayton, Victoria, Australia
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Kofoed KF, Sørgaard MH, Linde JJ. Functional Information in Coronary Artery Disease: The Case of Computed Tomography Myocardial Perfusion. Curr Cardiol Rep 2017; 19:126. [PMID: 29071430 DOI: 10.1007/s11886-017-0937-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
PURPOSE OF REVIEW To review methodological and logistical aspects of CT myocardial perfusion, current clinical evidence and possible future directions, with specific focus on use in patients with coronary artery disease (CAD). RECENT FINDINGS CT myocardial perfusion imaging may be performed as an add-on to standard coronary CT angiography (CCTA), to identify regions of myocardial hypoperfusion, at rest and during adenosine stress. The principle of measurement is well-validated in animal experimental models, and CT myocardial perfusion imaging has a high degree of concordance with already clinically available perfusion imaging methods. Combining CCTA and CT myocardial perfusion imaging increases the diagnostic accuracy to identify patients with CAD associated with ischemia. In patients suspected of CAD, CCTA frequently detects coronary atherosclerotic lesions, in which revascularization could be clinically beneficial. CT myocardial perfusion imaging may be helpful to identify coronary lesions associated with myocardial ischemia, and thus potentially suitable for coronary intervention.
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Affiliation(s)
- Klaus F Kofoed
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.
- Department of Cardiology 2014, The Heart Centre, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, 2100, Copenhagen, Denmark.
- Department of Radiology, The Diagnostic Centre, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.
| | - Mathias H Sørgaard
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Jesper J Linde
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
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Linde JJ, Sørgaard M, Kühl JT, Hove JD, Kelbæk H, Nielsen WB, Kofoed KF. Prediction of clinical outcome by myocardial CT perfusion in patients with low-risk unstable angina pectoris. Int J Cardiovasc Imaging 2016; 33:261-270. [DOI: 10.1007/s10554-016-0994-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Accepted: 10/03/2016] [Indexed: 01/31/2023]
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Sørgaard M, Linde JJ, Hove JD, Petersen JR, Jørgensen TBS, Abdulla J, Heitmann M, Kragelund C, Hansen TF, Udholm PM, Pihl C, Kühl JT, Engstrøm T, Jensen JS, Høfsten DE, Kelbæk H, Kofoed KF. Myocardial perfusion 320-row multidetector computed tomography-guided treatment strategy for the clinical management of patients with recent acute-onset chest pain: Design of the CArdiac cT in the treatment of acute CHest pain (CATCH)-2 randomized controlled trial. Am Heart J 2016; 179:127-35. [PMID: 27595687 DOI: 10.1016/j.ahj.2016.05.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Accepted: 05/27/2016] [Indexed: 12/21/2022]
Abstract
AIMS Patients admitted with chest pain are a diagnostic challenge because the majority does not have coronary artery disease (CAD). Assessment of CAD with coronary computed tomography angiography (CCTA) is safe, cost-effective, and accurate, albeit with a modest specificity. Stress myocardial computed tomography perfusion (CTP) has been shown to increase the specificity when added to CCTA, without lowering the sensitivity. This article describes the design of a randomized controlled trial, CATCH-2, comparing a clinical diagnostic management strategy of CCTA alone against CCTA in combination with CTP. METHODS Patients with acute-onset chest pain older than 50 years and with at least one cardiovascular risk factor for CAD are being prospectively enrolled to this study from 6 different clinical sites since October 2013. A total of 600 patients will be included. Patients are randomized 1:1 to clinical management based on CCTA or on CCTA in combination with CTP, determining the need for further testing with invasive coronary angiography including measurement of the fractional flow reserve in vessels with coronary artery lesions. Patients are scanned with a 320-row multidetector computed tomography scanner. Decisions to revascularize the patients are taken by the invasive cardiologist independently of the study allocation. The primary end point is the frequency of revascularization. Secondary end points of clinical outcome are also recorded. DISCUSSION The CATCH-2 will determine whether CCTA in combination with CTP is diagnostically superior to CCTA alone in the management of patients with acute-onset chest pain.
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Affiliation(s)
- Mathias Sørgaard
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.
| | - Jesper J Linde
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Jens D Hove
- Department of Cardiology, Hvidovre Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Jan R Petersen
- Department of Cardiology, Amager Hospital, Copenhagen, University of Copenhagen, Copenhagen, Denmark
| | - Tem B S Jørgensen
- Department of Cardiology, Amager Hospital, Copenhagen, University of Copenhagen, Copenhagen, Denmark
| | - Jawdat Abdulla
- Department of Medicine, Division of Cardiology, Glostrup Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Merete Heitmann
- Department of Cardiology, Bispebjerg Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Charlotte Kragelund
- Department of Cardiology, Herlev Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Thomas Fritz Hansen
- Department of Cardiology, Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Patricia M Udholm
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Christian Pihl
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - J Tobias Kühl
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Thomas Engstrøm
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Jan Skov Jensen
- Department of Cardiology, Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Dan E Høfsten
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Henning Kelbæk
- Department of Cardiology, Roskilde Sygehus, University of Copenhagen, Copenhagen, Denmark
| | - Klaus F Kofoed
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark; Department of Radiology, The Diagnostic Centre, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
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de Knegt MC, Linde JJ, Fuchs A, Nordestgaard BG, Køber LV, Hove JD, Kofoed KF. Reproducibility of coronary atherosclerotic plaque characteristics in populations with low, intermediate, and high prevalence of coronary artery disease by multidetector computer tomography: a guide to reliable visual coronary plaque assessments. Int J Cardiovasc Imaging 2016; 32:1555-66. [PMID: 27378095 DOI: 10.1007/s10554-016-0932-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 06/25/2016] [Indexed: 02/07/2023]
Abstract
To evaluate the interobserver agreement of visual coronary plaque characteristics by 320-slice multidetector computed tomography (MDCT) in three populations with low, intermediate and high CAD prevalence and to identify determinants for the reproducible assessment of these plaque characteristics. 150 patients, 50 asymptomatic subjects from the general population (low CAD prevalence), 50 symptomatic non-acute coronary syndrome (non-ACS) patients (intermediate CAD prevalence), and 50 ACS patients (high CAD prevalence), matched according to age and gender, were retrospectively enrolled. All coronary segments were evaluated for overall image quality, evaluability, presence of CAD, coronary stenosis, plaque composition, plaque focality, and spotty calcification by four readers. Interobserver agreement was assessed using Fleiss' Kappa (κ) and intra-class correlation (ICC). Widely used clinical parameters (overall scan quality, presence of CAD, and determination of coronary stenosis) showed good agreement among the four readers, (ICC = 0.66, κ = 0.73, ICC = 0.74, respectively). When accounting for heart rate, body mass index, plaque location, and coronary stenosis above/below 50 %, interobserver agreement for plaque composition, presence of CAD, and coronary stenosis improved to either good or excellent, (κ = 0.61, κ = 0.81, ICC = 0.78, respectively). Spotty calcification was the least reproducible parameter investigated (κ = 0.33). Across subpopulations, reproducibility of coronary plaque characteristics generally decreased with increasing CAD prevalence except for plaque composition, (limits of agreement: ±2.03, ±1.96, ±1.79 for low, intermediate and high CAD prevalence, respectively). 320-slice MDCT can be used to assess coronary plaque characteristics, except for spotty calcification. Reproducibility estimates are influenced by heart rate, body size, plaque location, and degree of luminal stenosis.
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Affiliation(s)
- Martina C de Knegt
- Department of Cardiology, The Heart Center, Rigshospitalet, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 9, 2100, Copenhagen, Denmark. .,Department of Cardiology, Hvidovre Hospital, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark.
| | - Jesper J Linde
- Department of Cardiology, The Heart Center, Rigshospitalet, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 9, 2100, Copenhagen, Denmark.,Department of Cardiology, Hvidovre Hospital, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Andreas Fuchs
- Department of Cardiology, The Heart Center, Rigshospitalet, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 9, 2100, Copenhagen, Denmark
| | - Børge G Nordestgaard
- Department of Clinical Biochemistry, Herlev Hospital, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Lars V Køber
- Department of Cardiology, The Heart Center, Rigshospitalet, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 9, 2100, Copenhagen, Denmark
| | - Jens D Hove
- Department of Cardiology, Hvidovre Hospital, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Klaus F Kofoed
- Department of Cardiology, The Heart Center, Rigshospitalet, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 9, 2100, Copenhagen, Denmark.,Department of Radiology, Rigshospitalet, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
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Sørgaard M, Linde JJ, Ismail H, Risum N, Kofoed KF, Kühl JT, Tittle B, Nielsen WB, Hove JD. Respiratory influence on left atrial volume calculation with 3D-echocardiography. Cardiovasc Ultrasound 2016; 14:11. [PMID: 26970904 PMCID: PMC4789267 DOI: 10.1186/s12947-016-0054-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Accepted: 03/03/2016] [Indexed: 11/10/2022] Open
Abstract
Background Left atrial volume (LAV) estimation with 3D echocardiography has been shown to be more accurate than 2D volume calculation. However, little is known about the possible effect of respiratory movements on the accuracy of the measurement. Methods 100 consecutive patients admitted with chest pain were examined with 3D echocardiography and LAV was quantified during inspiratory breath hold, expiratory breath hold and during free breathing. Results Of the 100 patients, only 65 had an echocardiographic window that allowed for 3D echocardiography in the entire respiratory cycle. Mean atrial end diastolic volume was 45.4 ± 14.5 during inspiratory breath hold, 46.4 ± 14.8 during expiratory breath hold and 45.6 ± 14.3 during free respiration. Mean end systolic volume was 17.6 ± 7.8 during inspiratory breath hold, 18.8 ± 8.0 during expiratory breath hold and 18.3 ± 8.0 during free respiration. No significant differences were seen in any of the measured parameters. Conclusions The present study adds to the feasibility of 3D LAV quantitation. LAV estimation by 3D echocardiography may be performed during either end-expiratory or end-inspiratory breath-hold without any significant difference in the calculated volume. Also, the LAV estimation may be performed during free breathing.
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Affiliation(s)
- Mathias Sørgaard
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, 2100-CPH, København, Denmark.
| | - Jesper J Linde
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, 2100-CPH, København, Denmark
| | - Hafsa Ismail
- Department of Cardiology, Hvidovre Hospital, University of Copenhagen, København, Denmark
| | - Niels Risum
- Department of Cardiology, Hvidovre Hospital, University of Copenhagen, København, Denmark
| | - Klaus F Kofoed
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, 2100-CPH, København, Denmark.,Department of Radiology, Rigshospitalet, University of Copenhagen, København, Denmark
| | - Jørgen T Kühl
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, 2100-CPH, København, Denmark
| | - Benjamin Tittle
- Department of Cardiology, Hvidovre Hospital, University of Copenhagen, København, Denmark
| | - Walter B Nielsen
- Department of Cardiology, Hvidovre Hospital, University of Copenhagen, København, Denmark
| | - Jens D Hove
- Department of Cardiology, Hvidovre Hospital, University of Copenhagen, København, Denmark.,Centre for Functional and Diagnostic Imaging and Research, Hvidovre Hospital, University of Copenhagen, København, Denmark
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Linde JJ, Hove JD, Sørgaard M, Kelbæk H, Jensen GB, Kühl JT, Hindsø L, Køber L, Nielsen WB, Kofoed KF. Long-Term Clinical Impact of Coronary CT Angiography in Patients With Recent Acute-Onset Chest Pain. JACC Cardiovasc Imaging 2015; 8:1404-1413. [DOI: 10.1016/j.jcmg.2015.07.015] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 07/26/2015] [Accepted: 07/30/2015] [Indexed: 12/19/2022]
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Kühl JT, George RT, Mehra VC, Linde JJ, Chen M, Arai AE, Di Carli M, Kitagawa K, Dewey M, Lima JAC, Kofoed KF. Endocardial-epicardial distribution of myocardial perfusion reserve assessed by multidetector computed tomography in symptomatic patients without significant coronary artery disease: insights from the CORE320 multicentre study. Eur Heart J Cardiovasc Imaging 2015; 17:779-87. [PMID: 26341292 DOI: 10.1093/ehjci/jev206] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Accepted: 08/02/2015] [Indexed: 12/15/2022] Open
Abstract
AIM Previous animal studies have demonstrated differences in perfusion and perfusion reserve between the subendocardium and subepicardium. 320-row computed tomography (CT) with sub-millimetre spatial resolution allows for the assessment of transmural differences in myocardial perfusion reserve (MPR) in humans. We aimed to test the hypothesis that MPR in all myocardial layers is determined by age, gender, and cardiovascular risk profile in patients with ischaemic symptoms or equivalent but without obstructive coronary artery disease (CAD). METHODS AND RESULTS A total of 149 patients enrolled in the CORE320 study with symptoms or signs of myocardial ischaemia and absence of significant CAD by invasive coronary angiography were scanned with static rest and stress CT perfusion. Myocardial attenuation densities were assessed at rest and during adenosine stress, segmented into 3 myocardial layers and 13 segments. MPR was higher in the subepicardium compared with the subendocardium (124% interquartile range [45, 235] vs. 68% [22,102], P < 0.001). Moreover, MPR in the septum was lower than in the inferolateral and anterolateral segments of the myocardium (55% [19, 104] vs. 89% [37, 168] and 124% [54, 270], P < 0.001). By multivariate analysis, high body mass index was significantly associated with reduced MPR in all myocardial layers when adjusted for cardiovascular risk factors (P = 0.02). CONCLUSION In symptomatic patients without significant coronary artery stenosis, distinct differences in endocardial-epicardial distribution of perfusion reserve may be demonstrated with static CT perfusion. Low MPR in all myocardial layers was observed specifically in obese patients.
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Affiliation(s)
- Jørgen Tobias Kühl
- Department of Cardiology, Rigshospitalet, University of Copenhagen, 2012, The Heart Centre, Blegdamsvej 9, 2100 Copenhagen, Denmark
| | - Richard T George
- Department of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Vishal C Mehra
- Department of Medicine, Johns Hopkins University, Baltimore, MD, USA National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Jesper J Linde
- Department of Cardiology, Rigshospitalet, University of Copenhagen, 2012, The Heart Centre, Blegdamsvej 9, 2100 Copenhagen, Denmark
| | - Marcus Chen
- National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Andrew E Arai
- National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | | | | | - Marc Dewey
- Charitè Medical School, Humboldt, Berlin, Germany
| | - Joao A C Lima
- Department of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Klaus Fuglsang Kofoed
- Department of Cardiology, Rigshospitalet, University of Copenhagen, 2012, The Heart Centre, Blegdamsvej 9, 2100 Copenhagen, Denmark Department of Radiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
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Kühl JT, Linde JJ, Køber L, Kelbæk H, Kofoed KF. The Transmural Extent and Severity of Myocardial Hypoperfusion Predicts Long-Term Outcome in NSTEMI: An MDCT Study. JACC Cardiovasc Imaging 2015; 8:684-94. [PMID: 25981505 DOI: 10.1016/j.jcmg.2015.01.022] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Revised: 01/26/2015] [Accepted: 01/30/2015] [Indexed: 11/28/2022]
Abstract
OBJECTIVES The objective of this study was to test the hypothesis that the extent and severity of left ventricular myocardial hypoperfusion at rest, in addition to signs of left ventricular myocardial scar, are related to adverse long-term outcome in patients with non-ST-segment elevation myocardial infarction (NSTEMI). BACKGROUND Multidetector computed tomography (MDCT) is a noninvasive test with a spatial resolution that allows for the assessment of transmural myocardial perfusion. In patients with suspected NSTEMI, the assessment of myocardial hypoperfusion could be clinically useful. METHODS MDCT was performed at rest before invasive treatment in 396 patients with NSTEMI. The transmural involvement of left ventricular hypoperfusion, the presence of intramyocardial fat or calcification, a summed defect score adding the extent of left ventricular myocardial hypoperfusion (0 to 64 point scale), and the transmural attenuation ratio between the subendocardial and the subepicardial myocardium were assessed. The study endpoint was a combination of death and hospitalization due to heart failure. RESULTS The median follow-up time of the study was 50 months, and the study endpoint was reached in 56 (15%) of the patients. In a Cox proportional hazards survival model with adjustments for known risk factors, both the summed defect score and transmural attenuation ratio were independently associated with adverse outcome (hazard ratio [HR]: 1.07; 95% confidence interval [CI]: 1.02 to 1.11; p = 0.004 and HR: 0.61; 95% CI: 0.44 to 0.85; p = 0.003, respectively). The presence of intramyocardial fat or calcification was also associated with adverse outcome (HR: 3.5; 95% CI: 1.2 to 10.7; p = 0.03) when compared with patients without any perfusion defect. CONCLUSIONS The extent and severity of left ventricular myocardial hypoperfusion at rest and signs of left ventricular myocardial scar assessed with MDCT before invasive treatment is strongly linked to adverse long-term outcome in patients with NSTEMI.
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Affiliation(s)
- J Tobias Kühl
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Denmark.
| | - Jesper J Linde
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Denmark
| | - Lars Køber
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Denmark
| | - Henning Kelbæk
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Denmark
| | - Klaus F Kofoed
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Denmark; Department of Radiology, Diagnostic Centre, Rigshospitalet, University of Copenhagen, Denmark
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Sørgaard M, Linde JJ, Kofoed KF. Pseudoaneurysm of the sinus of Valsalva with coronary artery compression as the primary manifestation of infective endocarditis: a case report. J Heart Valve Dis 2013; 22:880-882. [PMID: 24597416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A pseudoaneurysm of the native sinus of Valsalva compressing a coronary artery is extremely rare. Herein, the case is reported of infective endocarditis with a pseudoaneurysm of the sinus of Valsalva compressing the right coronary artery as the primary diagnostic finding, and its successful treatment. It is suggested that patients with suspected pseudoaneurysms of the sinus of Valsalva should undergo cardiac computed tomographic angiography for diagnosis of this condition.
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Affiliation(s)
- Mathias Sørgaard
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Denmark.
| | - Jesper J Linde
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Denmark
| | - Klaus F Kofoed
- Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Denmark
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Kühl JT, Linde JJ, Fuchs A, Kristensen TS, Kelbæk H, George RT, Hove JD, Kofoed KF. Patterns of myocardial perfusion in humans evaluated with contrast-enhanced 320 multidetector computed tomography. Int J Cardiovasc Imaging 2011; 28:1739-47. [DOI: 10.1007/s10554-011-9986-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2011] [Accepted: 11/19/2011] [Indexed: 12/01/2022]
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30
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Larsen AN, Gregersen IB, Christensen OB, Linde JJ, Mikkelsen PS. Potential future increase in extreme one-hour precipitation events over Europe due to climate change. Water Sci Technol 2009; 60:2205-2216. [PMID: 19901451 DOI: 10.2166/wst.2009.650] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
In this study the potential increase of extreme precipitation in a future warmer European climate has been examined. Output from the regional climate model (RCM) HIRHAM4 covering Europe has been analysed for two periods, a control period 1961-1990 and a scenario 2071-2100, the latter following the IPCC scenario A2. The model has a resolution of about 12 km, which is unique compared with existing RCM studies that typically operate at 25-50 km scale, and make the results relevant to hydrological phenomena occurring at the spatial scale of the infrastructure designed to drain off rainfall in large urban areas. Extreme events with one- and 24-hour duration were extracted using the Partial Duration Series approach, a Generalized Pareto Distribution was fitted to the data and T-year events for return periods from 2 to 100 years were calculated for the control and scenario period in model cells across Europe. The analysis shows that there will be an increase of the intensity of extreme events generally in Europe; Scandinavia will experience the highest increase and southern Europe the lowest. A 20 year 1-hour precipitation event will for example become a 4 year event in Sweden and a 10 year event in Spain. Intensities for short durations and high return periods will increase the most, which implies that European urban drainage systems will be challenged in the future.
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Affiliation(s)
- A N Larsen
- Department of Environmental Engineering (DTU Environment), Technical University of Denmark, Miljoevej, Bldg 113, DK-2800, Kgs. Lyngby, Denmark.
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Grum M, Jørgensen AT, Johansen RM, Linde JJ. The effect of climate change on urban drainage: an evaluation based on regional climate model simulation. Water Sci Technol 2006; 54:9-15. [PMID: 17120628 DOI: 10.2166/wst.2006.592] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
That we are in a period of extraordinary rates of climate change is today evident. These climate changes are likely to impact local weather conditions with direct impacts on precipitation patterns and urban drainage. In recent years several studies have focused on revealing the nature, extent and consequences of climate change on urban drainage and urban runoff pollution issues. This study uses predictions from a regional climate model to look at the effects of climate change on extreme precipitation events. Results are presented in terms of point rainfall extremes. The analysis involves three steps: Firstly, hourly rainfall intensities from 16 point rain gauges are averaged to create a rain gauge equivalent intensity for a 25 x 25 km square corresponding to one grid cell in the climate model. Secondly, the differences between present and future in the climate model is used to project the hourly extreme statistics of the rain gauge surface into the future. Thirdly, the future extremes of the square surface area are downscaled to give point rainfall extremes of the future. The results and conclusions rely heavily on the regional model's suitability in describing extremes at timescales relevant to urban drainage. However, in spite of these uncertainties, and others raised in the discussion, the tendency is clear: extreme precipitation events effecting urban drainage and causing flooding will become more frequent as a result of climate change.
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Affiliation(s)
- M Grum
- PH-Consult, Ordruphøjvej 4, 2920 Charlottenlund, Denmark.
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Hauger MB, Rauch W, Linde JJ, Mikkelsen PS. Cost benefit risk--a concept for management of integrated urban wastewater systems? Water Sci Technol 2002; 45:185-193. [PMID: 11902470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Urban wastewater systems should be evaluated and analysed from an integrated point of view, taking all parts of the system, that is sewer system, wastewater treatment plant and receiving waters into consideration. Risk and parameter uncertainties are aspects that hardly ever have been addressed in the evaluation and design of urban wastewater systems. In this paper we present and discuss a probabilistic approach for evaluation of the performance of urban wastewater systems. Risk analysis together with the traditional cost-benefit analysis is a special variant of multi-criteria analysis that seeks to find the most feasible improvement alternative for an urban wastewater system. The most feasible alternative in this context is the alternative that has the best performance, meaning that the alternative has the lowest sum of costs, benefits and risks. The sum is expressed as the Net Present Cost (NPC). To use NPC as a decision variable has the problematic effect, that two alternatives performing completely differently when focusing on environmental cost can have the same NPC. The extreme example is one alternative with high risk and low cost and another with low risk and high cost. In this example it is up to the decision-maker to decide whether she wants to spend the budget on preventive installations or cleaning up after failures in the environment.
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Affiliation(s)
- M B Hauger
- Environment and Resources DTU, Technical University of Denmark, Lyngby
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