Implementation and performance of automated software for computing right-to-left ventricular diameter ratio from computed tomography pulmonary angiography images

Kumamaru, Kanako and George, Elizabeth and Aghayev, Ayaz and Saboo, Sachin S. and Khandelwal, Ashish and Rodríguez López, Sara and Cai, Tianrun and Jimenez Carretero, Daniel and San José Estépar, Raúl and Ledesma Carbayo, Maria Jesus and González Díaz, Germán and Rybicki, Frank J. (2016). Implementation and performance of automated software for computing right-to-left ventricular diameter ratio from computed tomography pulmonary angiography images. "Journal of Computer Assisted Tomography", v. 40 (n. 3); pp. 387-392. ISSN 0363-8715. https://doi.org/10.1097/RCT.0000000000000375.

Description

Title: Implementation and performance of automated software for computing right-to-left ventricular diameter ratio from computed tomography pulmonary angiography images
Author/s:
  • Kumamaru, Kanako
  • George, Elizabeth
  • Aghayev, Ayaz
  • Saboo, Sachin S.
  • Khandelwal, Ashish
  • Rodríguez López, Sara
  • Cai, Tianrun
  • Jimenez Carretero, Daniel
  • San José Estépar, Raúl
  • Ledesma Carbayo, Maria Jesus
  • González Díaz, Germán
  • Rybicki, Frank J.
Item Type: Article
Título de Revista/Publicación: Journal of Computer Assisted Tomography
Date: June 2016
Volume: 40
Subjects:
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Ingeniería Electrónica
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[img]
Preview
PDF - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (1MB) | Preview

Abstract

OBJECTIVE: The aim of this study was to prospectively test the performance and potential for clinical integration of software that automatically calculates the right-to-left ventricular (RV/LV) diameter ratio from computed tomography pulmonary angiography images. METHODS: Using 115 computed tomography pulmonary angiography images that were positive for acute pulmonary embolism, we prospectively evaluated RV/LV ratio measurements that were obtained as follows: (1) completely manual measurement (reference standard), (2) completely automated measurement using the software, and (3 and 4) using a customized software interface that allowed 2 independent radiologists to manually adjust the automatically positioned calipers. RESULTS: Automated measurements underestimated (P < 0.001) the reference standard (1.09 [0.25] vs1.03 [0.35]). With manual correction of the automatically positioned calipers, the mean ratio became closer to the reference standard (1.06 [0.29] by read 1 and 1.07 [0.30] by read 2), and the correlation improved (r = 0.675 to 0.872 and 0.887). The mean time required for manual adjustment (37 [20] seconds) was significantly less than the time required to perform measurements entirely manually (100 [23] seconds). CONCLUSIONS: Automated CT RV/LV diameter ratio software shows promise for integration into the clinical workflow for patients with acute pulmonary embolism.

More information

Item ID: 46265
DC Identifier: http://oa.upm.es/46265/
OAI Identifier: oai:oa.upm.es:46265
DOI: 10.1097/RCT.0000000000000375
Official URL: https://insights.ovid.com/pubmed?pmid=26938697
Deposited by: Memoria Investigacion
Deposited on: 06 Jun 2017 15:21
Last Modified: 18 Aug 2017 10:50
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM