Please use this identifier to cite or link to this item: https://ahro.austin.org.au/austinjspui/handle/1/32923
Title: Early outcomes following integration of computed tomography (CT) coronary angiography service in an established cardiology practice in disease management.
Austin Authors: Playford, David;Schwarz, Nisha;Williamson, Anna E;Duong, MyNgan;Shadmaan, Amied;Turner, Daneh;Behncken, Stuart;Phillips, Tom;Kearney, Leighton G 
Affiliation: Advara HeartCare, Paddington, QLD, 4064, Australia
GE Healthcare, Parramatta, NSW, Australia.
Department of Medicine, The University of Melbourne, Melbourne, VICstralia.
Cardiology
School of Medicine, The University of Notre Dame Australia, Fremantle, WA, Australia.
Issue Date: 18-May-2023
Date: 2023
Publication information: Journal of Cardiovascular Computed Tomography 2023
Abstract: Computed tomography coronary angiography (CTCA) is an established modality for the diagnosis and assessment of cardiovascular disease. However, price and space pressure have mostly necessitated outsourcing CTCA to external radiology providers. Advara HeartCare has recently integrated CT services within local clinical networks across Australia. This study examined the benefits of the presence (integrated) or absence (pre-integrated) of this "in-house" CTCA service in real-world clinical practice. De-identified patient data from electronic medical records were used to create an Advara HeartCare CTCA database. Data analysis included clinical history, demographics, CTCA procedure, and 30-day outcomes post-CTCA from two age-matched cohorts: integrated (n ​= ​495) and pre-integrated (n ​= ​456). Data capture was more comprehensive and standardised across the integrated cohort. There was a 21% increase in referrals for CTCA from cardiologists observed for the integration cohort vs. pre-integration [n ​= ​332 (72.8%) pre-integration vs. n ​= ​465 (93.9%) post-integration, p ​< ​0.0001] with a parallel increase in diagnostic assessments including blood tests [n ​= ​209 (45.8%) vs. n ​= ​387 (78.1%), respectively, p ​< ​0.0001]. The integrated cohort received lower total dose length product [Median 212 (interquartile range 136-418) mGy∗cm vs. 244 (141.5, 339.3) mGy∗cm, p ​= ​0.004] during the CTCA procedure. 30-days after CTCA scan, there was a significantly higher use of lipid-lowering therapies in the integrated cohort [n ​= ​133 (50.5%) vs. n ​= ​179 (60.6%), p ​= ​0.04], along with a significant decrease in the number of stress echocardiograms performed [n ​= ​14 (10.6%) vs. n ​= ​5 (11.6%), p ​= ​0.01]. Integrated CTCA has salient benefits in patient management, including increased pathology tests, statin usage, and decreased post-CTCA stress echocardiography utilisation. Our ongoing work will examine the effect of integration on cardiovascular outcomes.
URI: https://ahro.austin.org.au/austinjspui/handle/1/32923
DOI: 10.1016/j.jcct.2023.04.003
ORCID: 
Journal: Journal of Cardiovascular Computed Tomography
PubMed URL: 37210242
ISSN: 1876-861X
Type: Journal Article
Subjects: CTCA
Cardiac CT service
Computed tomography coronary angiography
In-house service
Integrated CT services
Appears in Collections:Journal articles

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