Article
Cardiac & Cardiovascular Systems
Bernard De Bruyne, Nico H. J. Pijls, Emanuele Gallinoro, Alessandro Candreva, Stephane Fournier, Danielle C. J. Keulards, Jeroen Sonck, Marcel Van't Veer, Emanuele Barbato, Jozef Bartunek, Marc Vanderheyden, Eric Wyffels, Annemiek De Vos, Mohamed El Farissi, Pim A. L. Tonino, Olivier Muller, Carlos Collet, William F. Fearon
Summary: This study proposes microvascular resistance reserve (MRR) as a specific index for assessing coronary microvascular function, independent of autoregulation and myocardial mass, based on absolute values of coronary flow and pressure. The research found a strong correlation between continuous thermodilution-derived MRR and Doppler MRR, suggesting MRR as a specific, quantitative, and operator-independent metric for quantifying coronary microvascular dysfunction.
JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY
(2021)
Article
Radiology, Nuclear Medicine & Medical Imaging
Masahiro Hoshino, Seokhun Yang, Tomoyo Sugiyama, Jinlong Zhang, Yoshihisa Kanaji, Rikuta Hamaya, Masao Yamaguchi, Masahiro Hada, Tomoki Horie, Kai Nogami, Hiroki Ueno, Toru Misawa, Taishi Yonetsu, Doyeon Hwang, Joo Myung Lee, Eun-Seok Shin, Joon-Hyung Doh, Chang-Wook Nam, Bon-Kwon Koo, Tetsuo Sasano, Tsunekazu Kakuta
Summary: This study found that the prevalence of coronary microvascular dysfunction (CMD) in patients with intermediate epicardial stenosis is about one-third. CMD was significantly associated with greater lumen volume, fibrofatty and necrotic component volume, and epicardial fat volume.
EUROPEAN RADIOLOGY
(2021)
Article
Cardiac & Cardiovascular Systems
Melinda Boussoussou, Istvan F. Edes, Fanni Nowotta, Borbala Vattay, Milan Vecsey-Nagy, Zsofia Drobni, Judit Simon, Marton Kolossvary, Balazs N. Nemeth, Adam L. Jermendy, David Becker, Jonathon Leipsic, Campbell Rogers, Amy Collinsworth, Pal Maurovich-Horvat, Bela Merkely, Balint Szilveszter
Summary: This study aimed to evaluate the changes in invasive fractional flow reserve (FFRi) of non-infarction related lesions over time in ST-elevation myocardial infarction (STEMI) patients. The study found that coronary CT angiography-derived FFR (FFRCT) had a higher accuracy in predicting follow-up FFRi compared to baseline FFRi. This suggests that FFRCT could be a valuable tool in identifying hemodynamically relevant non-IRA lesions in STEMI patients.
JOURNAL OF CARDIOVASCULAR COMPUTED TOMOGRAPHY
(2023)
Article
Cardiac & Cardiovascular Systems
Damien Collison, Matthaios Didagelos, Muhammad Aetesam-ur-Rahman, Samuel Copt, Robert McDade, Peter McCartney, Thomas J. Ford, John McClure, Mitchell Lindsay, Aadil Shaukat, Paul Rocchiccioli, Richard Brogan, Stuart Watkins, Margaret McEntegart, Richard Good, Keith Robertson, Patrick O'Boyle, Andrew Davie, Adnan Khan, Stuart Hood, Hany Eteiba, Colin Berry, Keith G. Oldroyd
Summary: The study aimed to evaluate the feasibility and efficacy of a post-PCI FFR-guided optimization strategy compared to standard coronary angiography in achieving final post-PCI FFR values >= 0.90. While the FFR-guided optimization strategy did not significantly increase the proportion of patients with final FFR >= 0.90, it did significantly reduce the proportion of patients with final FFR <= 0.80.
EUROPEAN HEART JOURNAL
(2021)
Article
Cardiac & Cardiovascular Systems
Damien Collison, Matthaios Didagelos, Muhammad Aetesam-Ur-Rahman, Samuel Copt, Robert McDade, Peter McCartney, Thomas J. Ford, John McClure, Mitchell Lindsay, Aadil Shaukat, Paul Rocchiccioli, Richard Brogan, Stuart Watkins, Margaret McEntegart, Richard Good, Keith Robertson, Patrick O'Boyle, Andrew Davie, Adnan Khan, Stuart Hood, Hany Eteiba, Colin Berry, Keith G. Oldroyd
Summary: The TARGET-FFR trial examined the importance of FFR value >= 0.90 after PCI, finding that an FFR-guided optimization strategy did not significantly increase this proportion, but did reduce the proportion of patients with FFR value <= 0.80.
EUROPEAN HEART JOURNAL
(2021)
Article
Cardiac & Cardiovascular Systems
Xueqiang Guan, Dan Song, Changling Li, Yumeng Hu, Xiaochang Leng, Xiaosheng Sheng, Lifang Bao, Yibin Pan, Liang Dong, Jun Jiang, Jianping Xiang, Wenbing Jiang
Summary: This study compares the diagnostic performance of angio-FFR and CT-FFR in detecting hemodynamically significant coronary stenosis. The correlation between angio-FFR and invasive FFR was highly significant, while the correlation between CT-FFR and invasive FFR was moderate. The diagnostic accuracy of angio-FFR was higher than that of CT-FFR.
JOURNAL OF CARDIOVASCULAR TRANSLATIONAL RESEARCH
(2023)
Article
Cardiac & Cardiovascular Systems
Carlos Collet, Nils P. Johnson, Takuya Mizukami, William F. Fearon, Colin Berry, Jeroen Sonck, Damien Collison, Bon-Kwon Koo, Nicolas Meneveau, Shiv Kumar Agarwal, Barry Uretsky, Abdul Hakeem, Joon-Hyung Doh, Bruno R. Da Costa, Keith G. Oldroyd, Jonathon A. Leipsic, Umberto Morbiducci, Charles Taylor, Brian Ko, Pim A. L. Tonino, Divaka Perera, Toshiro Shinke, Claudio Chiastra, Andrei C. Sposito, Antonio Maria Leone, Olivier Muller, Stephane Fournier, Hitoshi Matsuo, Julien Adjedj, Nicolas Amabile, Zsolt Piroth, Fernando Alfonso, Fernando Rivero, Jung-Min Ahn, Gabor G. Toth, Abdul Ihdayhid, Nick E. J. West, Tetsuya Amano, Eric Wyffels, Daniel Munhoz, Marta Belmonte, Hirofumi Ohashi, Koshiro Sakai, Emanuele Gallinoro, Emanuele Barbato, Thomas Engstrom, Javier Escaned, Ziad A. Ali, Morton J. Kern, Nico H. J. Pijls, Peter Jueni, Bernard De Bruyne
Summary: This study found that the post-PCI FFR of the left anterior descending (LAD) artery was lower than that of non-LAD arteries, highlighting the importance of interpreting post-PCI FFR on a vessel-specific basis. Although a higher post-PCI FFR was associated with improved prognosis, its predictive capacity for events differed between the LAD and non-LAD arteries, being poor in the LAD and moderate in the non-LAD vessels.
JACC-CARDIOVASCULAR INTERVENTIONS
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
Leonie M. Becker, Joyce Peper, Bram J. L. A. Verhappen, Laurens A. Swart, Admir Dedic, Willem G. van Dockum, Martin van der Ent, Kees-Jan Royaards, Andre Niezen, Jan-Hein J. Hensen, Jan-Peter van Kuijk, Firdaus A. A. Mohamed Hoesein, Tim Leiner, Tobias A. Bruning, Martin J. Swaans
Summary: This study assessed the impact of CT-derived fractional flow reserve (FFR-CT) on clinical decision-making and patient prognosis in patients with stable coronary artery disease (CAD). The results showed that the addition of FFR-CT resulted in a reduction in invasive diagnostic testing and fewer occurrences of revascularizations.
EUROPEAN RADIOLOGY
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
Maximilian Schuessler, Fuat Saner, Fadi Al-Rashid, Thomas Schlosser
Summary: The study aimed to evaluate the role of CT-FFR in differentiating hemodynamically significant and non-significant coronary stenosis in patients undergoing evaluation for LT. The results showed a diagnostic accuracy of 85% for CT-FFR and correctly excluded the hemodynamic significance of stenosis in 69% of cases.
EUROPEAN RADIOLOGY
(2022)
Article
Cardiac & Cardiovascular Systems
Tara Neleman, Laurens J. C. van Zandvoort, Maria N. Tovar Forero, Kaneshka Masdjedi, Jurgen M. R. Ligthart, Karen T. Witberg, Frederik T. W. Groenland, Paul Cummins, Mattie J. Lenzen, Eric Boersma, Rutger-Jan Nuis, Wijnand K. den Dekker, Roberto Diletti, Jeroen Wilschut, Felix Zijlstra, Nicolas M. Van Mieghem, Joost Daemen
Summary: This study aimed to evaluate the therapeutic effect of PCI optimization guided by intravascular ultrasound (IVUS) in patients with post-PCI FFR <0.90. The results showed that IVUS-guided optimization significantly improved post-PCI FFR, but did not significantly reduce TVF at the 1-year follow-up. There was a trend towards a lower incidence of clinically driven target vessel revascularization in the treatment group.
JACC-CARDIOVASCULAR INTERVENTIONS
(2022)
Article
Cardiac & Cardiovascular Systems
Helen Ullrich, Maximilian Olschewski, Thomas Muenzel, Tommaso Gori
Summary: This study aims to investigate the potential of increasing coronary sinus pressure in improving microvascular resistances and reducing angina in patients with Microvascular Angina (MVA). The study will examine the effect of acute increase in coronary sinus pressure on various coronary physiology parameters in patients with angina and coronary microvascular dysfunction. The findings of this study will provide mechanistic evidence for the development of treatment strategies for MVA patients.
FRONTIERS IN CARDIOVASCULAR MEDICINE
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
Chenguang Li, Yumeng Hu, Jingpu Wang, Congcong Pan, Hao Lu, Yizhe Wu, Zhangwei Chen, Zhiqiang Pei, Li Shen, Jingsong He, Xiaochang Leng, Jianping Xiang, Junbo Ge
Summary: This study compared the diagnostic performance of calculating angiography-derived IMR and FFR under baseline and hyperemic conditions. It found that calculating IMR under hyperemic conditions is more accurate, while calculating FFR under both conditions is accurate.
QUANTITATIVE IMAGING IN MEDICINE AND SURGERY
(2023)
Article
Cardiac & Cardiovascular Systems
Xinye Xu, Jinbao Zhou, Yongzhen Zhang, Qian Li, Lijun Guo, Yanyang Mao, Liyun He
Summary: The study evaluated the correlation between TIMI frame count, IMR, and CFR in coronary microvascular disease (slow flow phenomenon). The results showed significant correlations between TFC and IMR in different drug administration states. The study also found that stepwise drug administration can achieve extensive analysis of the target site of CMD.
JOURNAL OF INTERVENTIONAL CARDIOLOGY
(2022)
Article
Cardiac & Cardiovascular Systems
Juwon Kim, Doosup Shin, Joo Myung Lee, Seung Hun Lee, David Hong, Ki Hong Choi, Doyeon Hwang, Coen K. M. Boerhout, Guus A. de Waard, Ji-Hyun Jung, Hernan Mejia-Renteria, Masahiro Hoshino, Mauro Echavarria-Pinto, Martijn Meuwissen, Hitoshi Matsuo, Maribel Madera-Cambero, Ashkan Eftekhari, Mohamed A. Effat, Tadashi Murai, Koen Marques, Joon-Hyung Doh, Evald H. Christiansen, Rupak Banerjee, Hyun Kuk Kim, Chang-Wook Nam, Giampaolo Niccoli, Masafumi Nakayama, Nobuhiro Tanaka, Eun-Seok Shin, Steven A. J. Chamuleau, Niels van Royen, Paul Knaapen, Bon Kwon Koo, Tsunekazu Kakuta, Javier Escaned, Jan J. Piek, Tim P. van de Hoef
Summary: This study aimed to evaluate the comparative prognosis of patients with intermediate FFR based on their CFR values and whether PCI should be deferred or performed. The results showed that PCI was associated with a lower risk of TVF when CFR was depressed, but there was no difference when CFR was preserved.
JACC-CARDIOVASCULAR INTERVENTIONS
(2022)
Article
Cardiac & Cardiovascular Systems
Maria Cristina Pasqualetto, Domenico Tuttolomondo, Antonio Cutruzzola, Giampaolo Niccoli, Damini Dey, Alessandro Greco, Chiara Martini, Concetta Irace, Fausto Rigo, Nicola Gaibazzi
Summary: A new imaging metric using CCTA, PCAT CT attenuation, provides information on coronary inflammation; the study found a significant inverse relationship between PCAT CT attenuation and CFVR-lad in subjects without overt or mild CAD.
INTERNATIONAL JOURNAL OF CARDIOLOGY
(2021)