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Basics and Clinical Application of the MR Assessment of Ventilation

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Pulmonary Functional Imaging

Part of the book series: Medical Radiology ((Med Radiol Diagn Imaging))

Abstract

There is a growing motivation for imaging regional lung ventilation. Global measures of lung function such as spirometry are not able to distinguish patterns of obstruction and regional reversibility in response to intervention. Advantages of MRI for lung imaging include use of nonionizing radiation and flexibility for acquiring dynamic, multidimensional signal changes in response to changes in lung function. For these reasons, MRI is particularly attractive for longitudinal studies of chronic lung disease, especially in pediatric populations. There are two broad classes of ventilation imaging methods using MRI, which have matured over the past decade: proton-based methods and direct imaging of exogenous gases using multinuclear MRI and spectroscopy. This chapter will provide a review of the theory and rationale of ventilation imaging with MRI, results of clinical research in ventilation MRI, and emerging methods of ventilation imaging. Proton MRI ventilation imaging techniques covered in this chapter include deformable image registration, Fourier decomposition, and oxygen-enhanced methods. This chapter also covers ventilation techniques utilizing MRI of visible gas nuclei, including hyperpolarized gas MRI and perfluorinated gas MRI.

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Correspondence to Sean B. Fain .

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Glossary

ACQ

Asthma Control Questionnaire

CF

Cystic Fibrosis

CNR

Contrast-to-Noise Ratio

COPD

Chronic Obstructive Pulmonary Disease

CT

Computed Tomography

DIR

Deformable Image Registration

FD

Fourier Decomposition

FEV1

Forced Expiratory Volume in 1 second

FlO2

Fractional Inhaled Oxygen

FRC

Functional Residual Capacity

FSE

Fast Spin Echo

FV

Fractional Ventilation

FVC

Forced Vital Capacity

FLASH

Fast Low-Angle Shot

Gd

Gadolinium

3He

Helium-3 gas isotope

HP

Hyperpolarized

HASTE

Half-Acquisition with Short Echo Time

ICC

Intra-Class Correlation

IR

Inversion Recovery

MCID

Minimum Clinically Important Difference

MRI

Magnetic Resonance Imaging

OE

Oxygen Enhanced

OTF

Oxygen Transfer Function

PFT

Pulmonary Function Test

RT

Radiation Therapy

SNR

Signal-to-Noise Ratio

SV

Specific Ventilation

SPECT

Single Photon Emission Computed Tomography

SPGR

Spoiled Gradient Echo

SSFSE

Single-Shot Fast Spin Echo

T1

Longitudinal Recovery Time

T2*

Nonrecoverable Transverse Signal Decay Time

TE

Echo Time

TLC

Total Lung Capacity

UTE

Ultrashort Echo Time

VDP

Ventilation Defect Percentage

V f

Volume of fresh air

V/Q

Ventilation-to-Perfusion ratio

V r

Reference volume

VV

Ventilated Volume

129Xe

Xenon-129 gas isotope

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Fain, S.B., Carey, K., Barton, G.P., Sorkness, R.L. (2021). Basics and Clinical Application of the MR Assessment of Ventilation. In: Ohno, Y., Hatabu, H., Kauczor, HU. (eds) Pulmonary Functional Imaging. Medical Radiology(). Springer, Cham. https://doi.org/10.1007/978-3-030-43539-4_5

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  • DOI: https://doi.org/10.1007/978-3-030-43539-4_5

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-030-43538-7

  • Online ISBN: 978-3-030-43539-4

  • eBook Packages: MedicineMedicine (R0)

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