Evidence map›Paper›PMID 29899591›Full record

ArticleProceedings of SPIE--the International Society for Optical Engineering2018

3D Printed Cardiovascular Patient Specific Phantoms Used for Clinical Validation of a CT-derived FFR Diagnostic Software.

Kelsey N Sommer, Lauren Shepard, Nitant Vivek Karkhanis, Vijay Iyer, Erin Angel, Michael F Wilson, Frank J Rybicki, Dimitrios Mitsouras, Stephen Rudin, Ciprian N Ionita

Registry-linked trialAbstract read
In one paragraph

Article in Proceedings of SPIE--the International Society for Optical Engineering, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03149042 (Validation of a Computed Tomography), which is not on this map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT03149042 completednot on this map

Validation of a Computed Tomography (CT) Based Fractional Flow Reserve (FFR) Software Using the 320 Detector Aquilion ONE CT Scanner.

TypeobservationalSponsorState University of New York at BuffaloRan2016 to 2019Enrolled75ConditionsAtherosclerosis, CoronaryArmsCCTA
3 · Its place in the literature

Who cites it

14 citing papers in PubMed.

  1. Review
  2. Development and Characteristics of a Dual-Layered Vascular Phantom.Cardiovascular engineering and technology · 2026
    Article
  3. Advanced 3D Visualization and 3D Printing in Radiology.Advances in experimental medicine and biology · 2023
    Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Evaluation of challenges and limitations of mechanical thrombectomy using 3D printed neurovascular phantoms.Proceedings of SPIE--the International Society for Optical Engineering · 2021
    Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Kelsey N SommerDepartment of Biomedical Engineering, University at Buffalo, Buffalo NY 14228.
Lauren ShepardDepartment of Biomedical Engineering, University at Buffalo, Buffalo NY 14228.
Nitant Vivek KarkhanisDepartment of Biomedical Engineering, University at Buffalo, Buffalo NY 14228.
Vijay IyerToshiba-Canon Stroke and Vascular Research Center, University at Buffalo, Buffalo NY 14208.
Erin AngelCanon Medical Systems USA, Irvine CA 92780.
Michael F WilsonToshiba-Canon Stroke and Vascular Research Center, University at Buffalo, Buffalo NY 14208.
Frank J RybickiThe Ottawa Hospital Research Institute and the Department of Radiology, University of Ottawa, Ottawa, ON, CA.
Dimitrios MitsourasBrigham and Women's Hospital Department of Radiology, Boston MA 02115.
Stephen RudinDepartment of Biomedical Engineering, University at Buffalo, Buffalo NY 14228.
Ciprian N IonitaDepartment of Biomedical Engineering, University at Buffalo, Buffalo NY 14228.

Funding

Micro-Radiographic Imager for Neuroovascular InterventionsR01EB002873 · NIBIB · STATE UNIVERSITY OF NEW YORK AT BUFFALO · PI RUDIN, STEPHEN · 2003 to 2015
$5.6M
NIBIB NIH HHS R01 EB002873
6 · The paper itself

Abstract

purpose3D printed patient specific vascular models provide the ability to perform precise and repeatable benchtop experiments with simulated physiological blood flow conditions. This approach can be applied to CT-derived patient geometries to determine coronary flow related parameters such as Fractional Flow Reserve (FFR). To demonstrate the utility of this approach we compared bench-top results with non-invasive CT-derived FFR software based on a computational fluid dynamics algorithm and catheter based FFR measurements. MATERIALS AND

methodsTwelve patients for whom catheter angiography was clinically indicated signed written informed consent to CT Angiography (CTA) before their standard care that included coronary angiography (ICA) and conventional FFR (Angio-FFR). The research CTA was used first to determine CT-derived FFR (Vital Images) and second to generate patient specific 3D printed models of the aortic root and three main coronary arteries that were connected to a programmable pulsatile pump. Benchtop FFR was derived from pressures measured proximal and distal to coronary stenosis using pressure transducers.

resultsAll 12 patients completed the clinical study without any complication, and the three FFR techniques (Angio-FFR, CT-FFR, and Benchtop FFR) are reported for one or two main coronary arteries. The Pearson correlation among Benchtop FFR/Angio-FFR, CT-FFR/ Benchtop FFR, and CT-FFR/ Angio-FFR are 0.871, 0.877, and 0.927 respectively.

conclusions3D printed patient specific cardiovascular models successfully simulated hyperemic blood flow conditions, matching invasive Angio-FFR measurements. This benchtop flow system could be used to validate CT-derived FFR diagnostic software, alleviating both cost and risk during invasive procedures.

Identifiers

PMID29899591
PMCPMC5994607

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Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.