Pulmonary Mri
Pulmonary Mri - Related Videos
05:07
Pulmonary Structural MRI using Free-Breathing, Self-Gated Ultra-short Echo Time Imaging
0 Views •
2024
A protocol is described for generating high-resolution structural images of the lungs using ultra-short-echo time (UTE) Magnetic Resonance Imaging (MRI). This protocol allows for images to be acquired using a simple MRI pulse sequence during free-breathing.
06:06
Optogenetic Functional MRI
0 Views •
Cited by 15 •
2016
This protocol describes the steps and data analysis required to successfully perform optogenetic functional magnetic resonance imaging (ofMRI). ofMRI is a novel technique that combines high-field fMRI readout with optogenetic stimulation, allowing for cell type-specific mapping of functional neural circuits and their dynamics across the whole living brain.
05:56
Phase-Resolved Functional Lung MRI for Pulmonary Ventilation and Perfusion (V/Q) Assessment
0 Views •
Cited by 8 •
2024
Here, we describe the implementation of phase-resolved functional lung MRI as a contrast-agent-free proton MR technique for the assessment of pulmonary ventilation and perfusion dynamics. Validated and applicable across different field strengths and age groups, it could enhance clinical decision-making in the future by aiding in disease quantification and therapy monitoring.
08:17
Murine Echocardiography of Left Atrium, Aorta, and Pulmonary Artery
0 Views •
Cited by 8 •
2017
The following protocol describes the methodology for the acquisition and analysis of echocardiographic images used to obtain the Left Atrial Volume (LAV), Aorta (Ao) diameter, and Pulmonary Artery (PA) diameter in mice. This technique is a non-invasive, non-terminal procedure that allows assessment of the cardiopulmonary function.
08:20
MRI-guided dmPFC-rTMS as a Treatment for Treatment-resistant Major Depressive Disorder
0 Views •
Cited by 31 •
2015
Here we outline the procedure for MRI-guided repetitive transcranial magnetic stimulation to the dorsomedial prefrontal cortex as an experimental treatment for major depressive disorder.
FAQs
Pulmonary MRI signal formation depends on hydrogen nuclei responding to a strong magnetic field and radiofrequency pulses. The resulting signals are processed into images, while specialized imaging sequences emphasize different tissue or physiological features. This mechanism allows the examination to represent more than anatomy alone, supporting assessment of functional characteristics such as ventilation, blood flow, and regional tissue behavior.
Breathing can affect how lung images are acquired and interpreted, so respiratory gating helps coordinate image collection with the respiratory cycle. Specialized sequences add further control over what the examination emphasizes. Together, these approaches improve the ability of pulmonary MRI to characterize lung structure and function, rather than producing only a general anatomical representation.
Contrast agents and inhaled hyperpolarized gases provide complementary functional information. Contrast-enhanced imaging can help characterize tissue and blood flow, whereas hyperpolarized gases support evaluation of regional ventilation. Selecting between these approaches depends on the physiological feature under investigation, allowing pulmonary MRI to examine different components of respiratory function within the same broad imaging framework.
Pulmonary MRI can combine information about inhaled gas distribution with information related to blood flow to assess regional ventilation-perfusion patterns. Comparing these regional features helps describe how air movement and circulation are distributed through the lungs. This functional perspective extends evaluation beyond visible structure and can support investigation of airway, vascular, and other lung abnormalities.
A functional examination may combine the MRI system’s magnetic field and radiofrequency pulses with respiratory gating, specialized sequences, contrast agents, or inhaled hyperpolarized gases. These components are selected according to whether the goal is to assess tissue, blood flow, ventilation, or a combination of features. The resulting study can provide complementary structural and functional information.
Pulmonary MRI can complement computed tomography when repeated assessment is important, particularly because it avoids ionizing radiation. Its value is not limited to structural review: functional capabilities can support evaluation of ventilation, blood flow, treatment response, and lung disease over time. This makes it relevant to longitudinal monitoring and to care that requires radiation-sensitive imaging strategies.
Medical investigators use pulmonary MRI to study lung disease, airway and vascular abnormalities, and regional physiological patterns. Repeated examinations can also help track treatment response without adding ionizing radiation exposure. By linking structural findings with ventilation and perfusion information, the technique may support more individualized assessment and longitudinal respiratory care.