Comparison of CT-based Lobar Ventilation with 3He MR Imaging Ventilation Measurements

Radiology
Bilal A TahirJim M Wild

Abstract

To compare lobar lung ventilation computed from expiratory and inspiratory computed tomographic (CT) data with direct measurements of ventilation at hyperpolarized helium 3 ((3)He) magnetic resonance (MR) imaging by using same-breath hydrogen 1 ((1)H) MR imaging examinations to coregister the multimodality images. The study was approved by the national research ethics committee, and written patient consent was obtained. Thirty patients with asthma underwent breath-hold CT at total lung capacity and functional residual capacity. (3)He and (1)H MR images were acquired during the same breath hold at a lung volume of functional residual capacity plus 1 L. Lobar segmentations delineated by major fissures on both CT scans were used to calculate the percentage of ventilation per lobe from the change in inspiratory and expiratory lobar volumes. CT-based ventilation was compared with (3)He MR imaging ventilation by using diffeomorphic image registration of (1)H MR imaging to CT, which enabled indirect registration of (3)He MR imaging to CT. Statistical analysis was performed by using the Wilcoxon signed-rank test, Pearson correlation coefficient, and Bland-Altman analysis. The mean ± standard deviation absolute difference between the CT...Continue Reading

References

Mar 10, 2001·Journal of Magnetic Resonance Imaging : JMRI·T A AltesJ R Brookeman
Jun 29, 2004·Radiology·Kirsten L BoedekerJonathan G Goldin
Aug 31, 2004·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Jim M WildEdwin J R van Beek
Mar 22, 2005·Journal of Magnetic Resonance Imaging : JMRI·Neil WoodhouseEdwin J R van Beek
Oct 27, 2009·Journal of Magnetic Resonance Imaging : JMRI·Neil WoodhouseChristopher J Taylor
Nov 19, 2010·Radiology·Jan W De BackerWilfried De Backer
Mar 25, 2011·Korean Journal of Radiology : Official Journal of the Korean Radiological Society·Bruno HochheggerJose Silva Moreira
Jul 10, 2012·Magnetic Resonance Imaging·Andriy FedorovRon Kikinis
Jul 10, 2013·Journal of Applied Clinical Medical Physics·Kujtim LatifiGeoffrey G Zhang

❮ Previous
Next ❯

Citations

Sep 18, 2016·Clinical Oncology : a Journal of the Royal College of Radiologists·R H IrelandM Q Hatton
Oct 25, 2016·Current Opinion in Pulmonary Medicine·Samuel Y Ash, Alejandro A Diaz
Apr 22, 2017·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Alys R ClarkKelly Burrowes
Jun 14, 2017·Wiley Interdisciplinary Reviews. Systems Biology and Medicine·Kelly S BurrowesHaribalan Kumar
Jul 10, 2018·American Journal of Respiratory and Critical Care Medicine·Xiaoping WuSimon L F Walsh
Jan 24, 2019·Physics in Medicine and Biology·Bilal A TahirJim M Wild
Jul 20, 2019·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Caohui DuanXin Zhou
Jan 12, 2021·Revue des maladies respiratoires·M-P DebrayC Taillé
May 7, 2020·Journal of the American College of Radiology : JACR·UNKNOWN Expert Panel on Thoracic ImagingJeffrey P Kanne
Apr 21, 2021·The British Journal of Radiology·Joshua R AstleyBilal A Tahir

❮ Previous
Next ❯

Related Concepts

Related Feeds

Asthma

This feed focuses in Asthma in which your airways narrow and swell. This can make breathing difficult and trigger coughing, wheezing and shortness of breath.

Allergy and Asthma

Allergy and asthma are inflammatory disorders that are triggered by the activation of an allergen-specific regulatory t cell. These t cells become activated when allergens are recognized by allergen-presenting cells. Here is the latest research on allergy and asthma.