BIOMAT Database Logo BIOMAT Database Logo

Pulmonary MR angiography with contrast agent at 4 Tesla: a preliminary result. 2001

H Uematsu, and L Dougherty, and M Takahashi, and Y Ohno, and M Nakatsu, and H K Song, and V A Ferrari, and W B Gefter, and M D Schnall, and H Hatabu
Department of Radiology, University of Pennsylvania Medical Center, Philadelphia, Pennsylvania 19104-2649, USA.

In this study, pulmonary MR angiography (MRA) using a tailored coil at 4 Tesla in conjunction with an intravenous injection of contrast agent is described. Three-dimensional gradient-echo images were obtained during the intravenous injection of 0.05, 0.1, and 0.2 mmol/kg body weight of gadodiamide to investigate the signal enhancement effect of the contrast agent in pulmonary arteries qualitatively and quantitatively. In the qualitative analysis, the subsegmental branches were visualized on every dose. In the quantitative analysis, the average contrast-to-noise ratios (CNRs) of the main pulmonary arteries increased in a dose-dependent manner. However, the CNRs of segmental arteries did not increase as the dose of contrast agent increased, as observed at 1.5 Tesla MRI. These observations demonstrate the feasibility of delineating the pulmonary vasculature using a contrast agent; however, our results also suggest possible high-field-related disabilities that need to be overcome before high-field (> or =4 Tesla) MRI can be used to full advantage.

UI MeSH Term Description Entries
D007275 Injections, Intravenous Injections made into a vein for therapeutic or experimental purposes. Intravenous Injections,Injection, Intravenous,Intravenous Injection
D008168 Lung Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood. Lungs
D008297 Male Males
D011651 Pulmonary Artery The short wide vessel arising from the conus arteriosus of the right ventricle and conveying unaerated blood to the lungs. Arteries, Pulmonary,Artery, Pulmonary,Pulmonary Arteries
D003287 Contrast Media Substances used to allow enhanced visualization of tissues. Radiopaque Media,Contrast Agent,Contrast Agents,Contrast Material,Contrast Materials,Radiocontrast Agent,Radiocontrast Agents,Radiocontrast Media,Agent, Contrast,Agent, Radiocontrast,Agents, Contrast,Agents, Radiocontrast,Material, Contrast,Materials, Contrast,Media, Contrast,Media, Radiocontrast,Media, Radiopaque
D005240 Feasibility Studies Studies to determine the advantages or disadvantages, practicability, or capability of accomplishing a projected plan, study, or project. Feasibility Study,Studies, Feasibility,Study, Feasibility
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D018810 Magnetic Resonance Angiography Non-invasive method of vascular imaging and determination of internal anatomy without injection of contrast media or radiation exposure. The technique is used especially in CEREBRAL ANGIOGRAPHY as well as for studies of other vascular structures. Angiography, Magnetic Resonance,MRI Angiography,Perfusion Magnetic Resonance Imaging,Perfusion Weighted MRI,Angiographies, MRI,Angiographies, Magnetic Resonance,Angiography, MRI,MRI Angiographies,MRI, Perfusion Weighted,Magnetic Resonance Angiographies
D019786 Gadolinium DTPA A complex of gadolinium with a chelating agent, diethylenetriamine penta-acetic acid (DTPA see PENTETIC ACID), that is given to enhance the image in cranial and spinal MRIs. (From Martindale, The Extra Pharmacopoeia, 30th ed, p706) Gadopentetate Dimeglumine,Gd-DTPA,Gadolinium DTPA Dimeglumine,Gadolinium DTPA Dimeglumine Salt,Gadolinium DTPA Disodium Salt,Gadolinium Diethylenetriaminepenta-acetic Acid,Gadopentetic Acid,Magnevist,Magnevist Enteral,Magnograf,Magnograf Enteral,DTPA, Gadolinium,Diethylenetriaminepenta-acetic Acid, Gadolinium,Dimeglumine, Gadolinium DTPA,Dimeglumine, Gadopentetate,Gadolinium Diethylenetriaminepenta acetic Acid,Gd DTPA

Related Publications

H Uematsu, and L Dougherty, and M Takahashi, and Y Ohno, and M Nakatsu, and H K Song, and V A Ferrari, and W B Gefter, and M D Schnall, and H Hatabu
MR contrast agent at high-field MRI (3 Tesla).
October 2003, Topics in magnetic resonance imaging : TMRI,
H Uematsu, and L Dougherty, and M Takahashi, and Y Ohno, and M Nakatsu, and H K Song, and V A Ferrari, and W B Gefter, and M D Schnall, and H Hatabu
Air microbubbles as MR susceptibility contrast agent at 1.5 Tesla.
October 2006, Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine,
H Uematsu, and L Dougherty, and M Takahashi, and Y Ohno, and M Nakatsu, and H K Song, and V A Ferrari, and W B Gefter, and M D Schnall, and H Hatabu
Pulmonary MR perfusion at 3.0 Tesla using a blood pool contrast agent: Initial results in a swine model.
January 2007, Journal of magnetic resonance imaging : JMRI,
H Uematsu, and L Dougherty, and M Takahashi, and Y Ohno, and M Nakatsu, and H K Song, and V A Ferrari, and W B Gefter, and M D Schnall, and H Hatabu
A free-breathing non-contrast-enhanced pulmonary magnetic resonance angiography at 3 Tesla.
September 2009, Chinese medical journal,
H Uematsu, and L Dougherty, and M Takahashi, and Y Ohno, and M Nakatsu, and H K Song, and V A Ferrari, and W B Gefter, and M D Schnall, and H Hatabu
Contrast enhanced renal MR angiography at 7 Tesla: How much gadolinium do we need?
January 2017, European journal of radiology,
H Uematsu, and L Dougherty, and M Takahashi, and Y Ohno, and M Nakatsu, and H K Song, and V A Ferrari, and W B Gefter, and M D Schnall, and H Hatabu
Non-contrast-enhanced MR angiography at 3 Tesla in patients with advanced peripheral arterial occlusive disease.
January 2014, PloS one,
H Uematsu, and L Dougherty, and M Takahashi, and Y Ohno, and M Nakatsu, and H K Song, and V A Ferrari, and W B Gefter, and M D Schnall, and H Hatabu
Safety and preliminary findings with the intravascular contrast agent NC100150 injection for MR coronary angiography.
February 1999, Journal of magnetic resonance imaging : JMRI,
H Uematsu, and L Dougherty, and M Takahashi, and Y Ohno, and M Nakatsu, and H K Song, and V A Ferrari, and W B Gefter, and M D Schnall, and H Hatabu
Dynamic contrast-enhanced MR angiography of pulmonary embolism: comparison with pulmonary angiography.
May 1994, AJR. American journal of roentgenology,
H Uematsu, and L Dougherty, and M Takahashi, and Y Ohno, and M Nakatsu, and H K Song, and V A Ferrari, and W B Gefter, and M D Schnall, and H Hatabu
Contrast-enhanced peripheral MR angiography at 3.0 Tesla: initial experience with a whole-body scanner in healthy volunteers.
May 2003, Journal of magnetic resonance imaging : JMRI,
H Uematsu, and L Dougherty, and M Takahashi, and Y Ohno, and M Nakatsu, and H K Song, and V A Ferrari, and W B Gefter, and M D Schnall, and H Hatabu
MR angiography at 3 Tesla to assess proximal internal carotid artery stenoses: contrast-enhanced or 3D time-of-flight MR angiography?
March 2015, Clinical neuroradiology,
Copied contents to your clipboard!