The Association Between Catheter-based Coronary Flow and Resistance and 15O-H2O Positron Emission Tomography Scan
FLOW3
FLOW 3 - The Association Between Catheter-based Coronary Flow and Resistance and 15O-H2O Positron Emission Tomography Scan-based Absolute Myocardial Blood Flow in the Coronary Artery Territory.
1 other identifier
interventional
40
1 country
1
Brief Summary
Aims
- 1.To assess the correlation between absolute flow and resistance assessed by catheter-based thermodilution technique using CoroFlow®-system and myocardial blood flow (MBF) measured by positron emission tomography (PET) and the tracer \[15O\] labeled water (\[15O\]H2O) (15O-H2O PET)
- 2.To assess the correlation between impaired MBF measured with 15O-H2O PET and negative fractional flow reserve (FFR) and index of microvascular resistance (IMR) level.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable coronary-artery-disease
Started Dec 2019
Typical duration for not_applicable coronary-artery-disease
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
December 1, 2019
CompletedFirst Submitted
Initial submission to the registry
March 17, 2021
CompletedFirst Posted
Study publicly available on registry
July 22, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 31, 2023
CompletedStudy Completion
Last participant's last visit for all outcomes
July 1, 2024
CompletedJuly 31, 2024
July 1, 2024
4.1 years
March 17, 2021
July 29, 2024
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Sensitivity, specificity for absolute myocardial blood flow measured by 15O-H2O PET in detection of coronary microcirculatory diseases measured by index of microcirculatory index (IMR)
Sensitivity, specificity for absolute myocardial blood flow measured by 15O-H2O PET in detection of coronary microcirculatory diseases measured by index of microcirculatory index (IMR) during catheter-based thermodilution technique. The diagnostic performance of 15O-H2O PET between low and high IMR groups
From the 15O-H2O PET scan to the coronary physiology assessment during ICA, up to 1 week.
The diagnostic performance of 15O-H2O PET between low and high IMR groups
positive predictive value (PPV), negative predictive value (NPV) for absolute myocardial blood flow measured by 15O-H2O PET in detection of coronary microcirculatory diseases measured by index of microcirculatory index (IMR) during catheter-based thermodilution technique.
From the 15O-H2O PET scan to the coronary physiology assessment during ICA, up to 1 week.
Study Arms (2)
Group A
OTHERFFR negative/non-significant (\>0.80) and IMR negative (\<25)
Group B
OTHERFFR negative/non-significant (\>0.80) and IMR positive (\>25)
Interventions
Invasive coronary physiology measurements during diagnostic CAG with thermodilution method with the CoroFlow® (Coroventis, Uppsala, Sweden)
Myocardial blood flow (MBF) measured with oxygen-15 (O-15) labelled water used as a tracer molecule with positron emission tomography (PET)
Eligibility Criteria
You may qualify if:
- Patients referred to diagnostic ICA after heart-CT
- Able to provide an informed consent.
- Age ≥ 18 years
You may not qualify if:
- PCI, CABG, POBA or already acknowledge ischemic heart disease
- Acute coronary disease or AMI
- COPD or Asthma
- Pregnancy and breast breeding
- Contraindications to adenosine (severe asthma, complicated AV block, critical aortic stenosis, severe cardiac arrhythmias, severe valve diseases).
- Renal impairment with estimated glomerular filtration rate (eGFR) \<40 ml / min.
- Allergy to X-ray contrast agents or severe metabolic disease.
- Donor heart, mechanical heart, or mechanical heart pump
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Aarhus University Hospital
Aarhus, 8200, Denmark
Related Publications (13)
Pakkal M, Raj V, McCann GP. Non-invasive imaging in coronary artery disease including anatomical and functional evaluation of ischaemia and viability assessment. Br J Radiol. 2011 Dec;84 Spec No 3(Spec Iss 3):S280-95. doi: 10.1259/bjr/50903757.
PMID: 22723535BACKGROUNDWood DJ, Mason JB, Chapman HM. Scrapie scruples. N Z Vet J. 1978 Jul;26(7):190-1. doi: 10.1080/00480169.1978.34537. No abstract available.
PMID: 278924BACKGROUNDHuang SC, Schwaiger M, Carson RE, Carson J, Hansen H, Selin C, Hoffman EJ, MacDonald N, Schelbert HR, Phelps ME. Quantitative measurement of myocardial blood flow with oxygen-15 water and positron computed tomography: an assessment of potential and problems. J Nucl Med. 1985 Jun;26(6):616-25.
PMID: 3873525BACKGROUNDBergmann SR, Fox KA, Rand AL, McElvany KD, Welch MJ, Markham J, Sobel BE. Quantification of regional myocardial blood flow in vivo with H215O. Circulation. 1984 Oct;70(4):724-33. doi: 10.1161/01.cir.70.4.724.
PMID: 6332687BACKGROUNDBerti V, Sciagra R, Neglia D, Pietila M, Scholte AJ, Nekolla S, Rouzet F, Pupi A, Knuuti J. Segmental quantitative myocardial perfusion with PET for the detection of significant coronary artery disease in patients with stable angina. Eur J Nucl Med Mol Imaging. 2016 Jul;43(8):1522-9. doi: 10.1007/s00259-016-3362-0. Epub 2016 Mar 18.
PMID: 26993310BACKGROUNDKajander S, Joutsiniemi E, Saraste M, Pietila M, Ukkonen H, Saraste A, Sipila HT, Teras M, Maki M, Airaksinen J, Hartiala J, Knuuti J. Cardiac positron emission tomography/computed tomography imaging accurately detects anatomically and functionally significant coronary artery disease. Circulation. 2010 Aug 10;122(6):603-13. doi: 10.1161/CIRCULATIONAHA.109.915009. Epub 2010 Jul 26.
PMID: 20660808BACKGROUNDDanad I, Uusitalo V, Kero T, Saraste A, Raijmakers PG, Lammertsma AA, Heymans MW, Kajander SA, Pietila M, James S, Sorensen J, Knaapen P, Knuuti J. Quantitative assessment of myocardial perfusion in the detection of significant coronary artery disease: cutoff values and diagnostic accuracy of quantitative [(15)O]H2O PET imaging. J Am Coll Cardiol. 2014 Oct 7;64(14):1464-75. doi: 10.1016/j.jacc.2014.05.069.
PMID: 25277618BACKGROUNDDe Bruyne B, Pijls NH, Kalesan B, Barbato E, Tonino PA, Piroth Z, Jagic N, Mobius-Winkler S, Rioufol G, Witt N, Kala P, MacCarthy P, Engstrom T, Oldroyd KG, Mavromatis K, Manoharan G, Verlee P, Frobert O, Curzen N, Johnson JB, Juni P, Fearon WF; FAME 2 Trial Investigators. Fractional flow reserve-guided PCI versus medical therapy in stable coronary disease. N Engl J Med. 2012 Sep 13;367(11):991-1001. doi: 10.1056/NEJMoa1205361. Epub 2012 Aug 27.
PMID: 22924638BACKGROUNDPijls NH, van Schaardenburgh P, Manoharan G, Boersma E, Bech JW, van't Veer M, Bar F, Hoorntje J, Koolen J, Wijns W, de Bruyne B. Percutaneous coronary intervention of functionally nonsignificant stenosis: 5-year follow-up of the DEFER Study. J Am Coll Cardiol. 2007 May 29;49(21):2105-11. doi: 10.1016/j.jacc.2007.01.087. Epub 2007 May 17.
PMID: 17531660BACKGROUNDCorcoran D, Young R, Adlam D, McConnachie A, Mangion K, Ripley D, Cairns D, Brown J, Bucciarelli-Ducci C, Baumbach A, Kharbanda R, Oldroyd KG, McCann GP, Greenwood JP, Berry C. Coronary microvascular dysfunction in patients with stable coronary artery disease: The CE-MARC 2 coronary physiology sub-study. Int J Cardiol. 2018 Sep 1;266:7-14. doi: 10.1016/j.ijcard.2018.04.061. Epub 2018 Apr 19.
PMID: 29716756BACKGROUNDNeumann FJ, Sousa-Uva M, Ahlsson A, Alfonso F, Banning AP, Benedetto U, Byrne RA, Collet JP, Falk V, Head SJ, Juni P, Kastrati A, Koller A, Kristensen SD, Niebauer J, Richter DJ, Seferovic PM, Sibbing D, Stefanini GG, Windecker S, Yadav R, Zembala MO; ESC Scientific Document Group. 2018 ESC/EACTS Guidelines on myocardial revascularization. Eur Heart J. 2019 Jan 7;40(2):87-165. doi: 10.1093/eurheartj/ehy394. No abstract available.
PMID: 30165437BACKGROUNDXaplanteris P, Fournier S, Keulards DCJ, Adjedj J, Ciccarelli G, Milkas A, Pellicano M, Van't Veer M, Barbato E, Pijls NHJ, De Bruyne B. Catheter-Based Measurements of Absolute Coronary Blood Flow and Microvascular Resistance: Feasibility, Safety, and Reproducibility in Humans. Circ Cardiovasc Interv. 2018 Mar;11(3):e006194. doi: 10.1161/CIRCINTERVENTIONS.117.006194.
PMID: 29870386BACKGROUNDLuo C, Long M, Hu X, Huang Z, Hu C, Gao X, Du Z. Thermodilution-derived coronary microvascular resistance and flow reserve in patients with cardiac syndrome X. Circ Cardiovasc Interv. 2014 Feb;7(1):43-8. doi: 10.1161/CIRCINTERVENTIONS.113.000953. Epub 2014 Jan 7.
PMID: 24399243BACKGROUND
Related Links
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- DIAGNOSTIC
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Clinical Associate Professor
Study Record Dates
First Submitted
March 17, 2021
First Posted
July 22, 2021
Study Start
December 1, 2019
Primary Completion
December 31, 2023
Study Completion
July 1, 2024
Last Updated
July 31, 2024
Record last verified: 2024-07
Data Sharing
- IPD Sharing
- Will not share