{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,14]],"date-time":"2026-09-14T22:47:34Z","timestamp":1789426054587,"version":"build-2803163510"},"reference-count":13,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[2015,11,28]],"date-time":"2015-11-28T00:00:00Z","timestamp":1448668800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Cathet Cardio Intervent"],"published-print":{"date-parts":[[2016,12]]},"abstract":"<jats:sec><jats:title>Objectives<\/jats:title><jats:p>To determine the feasibility of automated co\u2010registration of angiography and intravascular ultrasound (IVUS) to facilitate integration of these two imaging modalities in a synchronous manner.<\/jats:p><\/jats:sec><jats:sec><jats:title>Background<\/jats:title><jats:p>IVUS provides cross\u2010sectional imaging of coronary arteries but lacks overview of the vascular territory provided by angiography. Co\u2010registration of angiography and IVUS would increase utility of IVUS in the clinical setting.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Forty\u2010nine consecutive patients undergoing surveillance for cardiac allograft vasculopathy with angiography and IVUS of the left anterior descending artery (LAD) were enrolled. A pre\u2010IVUS angiogram of the LAD was performed followed by an ECG\u2010triggered fluoroscopy (ECGTF) during IVUS pullback at 0.5\u00a0mm\/s using an automatic pullback device. ECGTF was used to track the IVUS catheter during pullback and establish a spatial relationship to the pre\u2010IVUS angiogram. Angio\u2010IVUS co\u2010registration was performed with a research prototype (Siemens Healthcare, Germany) and accuracy was evaluated by distance mismatch between angiography and IVUS images at vessel bifurcations.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Median age was 54 (44.5, 67) years. The population was 82.6% male with minimal risk factors. The median (IQR) co\u2010registration distance mismatch measured at 108 bifurcations in 42 (85%) patients was 0.35 (0.00\u20131.16) mm. Seven patients were excluded due to inappropriate data acquisition (<jats:italic>n<\/jats:italic>\u2009=\u20093) and failure of tracking (<jats:italic>n<\/jats:italic>\u2009=\u20094), e.g., due to overlapping sternal wires. Estimated effective radiation dose for ECGTF was 0.09\u00a0mSv.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>This study demonstrates the feasibility of angio\u2010IVUS co\u2010registration which may be used as a clinical tool for localizing IVUS cross\u2010sections along an angiographic roadmap. \u00a9 2015 Wiley Periodicals, Inc.<\/jats:p><\/jats:sec>","DOI":"10.1002\/ccd.26340","type":"journal-article","created":{"date-parts":[[2015,11,28]],"date-time":"2015-11-28T09:16:50Z","timestamp":1448702210000},"page":"1077-1082","source":"Crossref","is-referenced-by-count":8,"title":["Co\u2010registration of angiography and intravascular ultrasound images through image\u2010based device tracking"],"prefix":"10.1002","volume":"88","author":[{"given":"Megha","family":"Prasad","sequence":"first","affiliation":[{"name":"Mayo Clinic School of Medicine, Division of Cardiology Rochester Minnesota"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrew","family":"Cassar","sequence":"additional","affiliation":[{"name":"Mayo Clinic School of Medicine, Division of Cardiology Rochester Minnesota"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kenneth A.","family":"Fetterly","sequence":"additional","affiliation":[{"name":"Mayo Clinic School of Medicine, Division of Cardiology Rochester Minnesota"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Malcolm","family":"Bell","sequence":"additional","affiliation":[{"name":"Mayo Clinic School of Medicine, Division of Cardiology Rochester Minnesota"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Heike","family":"Theessen","sequence":"additional","affiliation":[{"name":"Siemens Corporate Research and Technology  Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Olivier","family":"Ecabert","sequence":"additional","affiliation":[{"name":"Siemens Corporate Research and Technology  Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"John F.","family":"Bresnahan","sequence":"additional","affiliation":[{"name":"Mayo Clinic School of Medicine, Division of Cardiology Rochester Minnesota"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Amir","family":"Lerman","sequence":"additional","affiliation":[{"name":"Mayo Clinic School of Medicine, Division of Cardiology Rochester 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