scholarly journals Consecutive Acquisition of Time-resolved Contrast-enhanced MR Angiography and Perfusion MR Imaging with Added Dose of Gadolinium-based Contrast Agent Aids Diagnosis of Suspected Brain Metastasis

2013 ◽  
Vol 12 (2) ◽  
pp. 87-93 ◽  
Author(s):  
Kazuhiro TSUCHIYA ◽  
Shigeki AOKI ◽  
Keigo SHIMOJI ◽  
Harushi MORI ◽  
Akira KUNIMATSU
Keyword(s):  
Brain Metastasis ◽  
Mr Imaging ◽  
Contrast Agent ◽  
Mr Angiography ◽  
Time Resolved ◽  
Contrast Enhanced ◽  
Perfusion Mr ◽  
Perfusion Mr Imaging ◽  
Aids Diagnosis

scholarly journals Contrast-Enhanced Magnetic Resonance Angiography Using a Novel Elastin-Specific Molecular Probe in an Experimental Animal Model

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Carolin Reimann ◽  
Julia Brangsch ◽  
Jan Ole Kaufmann ◽  
Lisa C. Adams ◽  
David C. Onthank ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Image Quality ◽  
Magnetic Resonance Angiography ◽  
Contrast Agent ◽  
Mr Angiography ◽  
Molecular Probe ◽  
Time Resolved ◽  
Clinical Dose ◽  
Contrast Enhanced ◽  
First Pass

Objectives. The aim of this study was to test the potential of a new elastin-specific molecular agent for the performance of contrast-enhanced first-pass and 3D magnetic resonance angiography (MRA), compared to a clinically used extravascular contrast agent (gadobutrol) and based on clinical MR sequences. Materials and Methods. Eight C57BL/6J mice (BL6, male, aged 10 weeks) underwent a contrast-enhanced first-pass and 3D MR angiography (MRA) of the aorta and its main branches. All examinations were on a clinical 3 Tesla MR system (Siemens Healthcare, Erlangen, Germany). The clinical dose of 0.1 mmol/kg was administered in both probes. First, a time-resolved MRA (TWIST) was acquired during the first-pass to assess the arrival and washout of the contrast agent bolus. Subsequently, a high-resolution 3D MRA sequence (3D T1 FLASH) was acquired. Signal-to-noise ratios (SNRs) and contrast-to-noise ratios (CNRs) were calculated for all sequences. Results. The elastin-specific MR probe and the extravascular imaging agent (gadobutrol) enable high-quality MR angiograms in all animals. During the first-pass, the probes demonstrated a comparable peak enhancement (300.6 ± 32.9 vs. 288.5 ± 33.1, p>0.05). Following the bolus phase, both agents showed a comparable intravascular enhancement (SNR: 106.7 ± 11 vs. 102.3 ± 5.3; CNR 64.5 ± 7.4 vs. 61.1 ± 7.2, p>0.05). Both agents resulted in a high image quality with no statistical difference (p>0.05). Conclusion. The novel elastin-specific molecular probe enables the performance of first-pass and late 3D MR angiography with an intravascular contrast enhancement and image quality comparable to a clinically used extravascular contrast agent.

Mean intensity curve on dynamic contrast-enhanced susceptibility-weighted perfusion MR imaging – review of a new parameter to differentiate intracranial tumors

2011 ◽  
Vol 38 (4) ◽  
pp. 199-206 ◽  
Author(s):  
S. Chinchure ◽  
B. Thomas ◽  
S. Wangju ◽  
M. Jolappara ◽  
C. Kesavadas ◽  
...  
Keyword(s):  
Mr Imaging ◽  
Intracranial Tumors ◽  
Intensity Curve ◽  
Mean Intensity ◽  
Dynamic Contrast Enhanced ◽  
Contrast Enhanced ◽  
Perfusion Mr ◽  
Perfusion Mr Imaging

Breast Lesions: Evaluation with Dynamic Contrast-enhanced T1-weighted MR Imaging and with T2*-weighted First-Pass Perfusion MR Imaging

Radiology ◽  
2000 ◽  
Vol 216 (2) ◽  
pp. 545-553 ◽  
Author(s):  
Kjell A. Kvistad ◽  
Jana Rydland ◽  
Jari Vainio ◽  
Hanne B. Smethurst ◽  
Steinar Lundgren ◽  
...  
Keyword(s):  
Mr Imaging ◽  
Breast Lesions ◽  
Dynamic Contrast Enhanced ◽  
Pass Perfusion ◽  
Contrast Enhanced ◽  
First Pass ◽  
Perfusion Mr ◽  
Perfusion Mr Imaging ◽  
First Pass Perfusion

Low-Grade Gliomas: Dynamic Susceptibility-weighted Contrast-enhanced Perfusion MR Imaging—Prediction of Patient Clinical Response

Radiology ◽  
2006 ◽  
Vol 238 (2) ◽  
pp. 658-667 ◽  
Author(s):  
Meng Law ◽  
Sarah Oh ◽  
James S. Babb ◽  
Edwin Wang ◽  
Matilde Inglese ◽  
...  
Keyword(s):  
Mr Imaging ◽  
Clinical Response ◽  
Low Grade ◽  
Dynamic Susceptibility ◽  
Low Grade Gliomas ◽  
Contrast Enhanced ◽  
Perfusion Mr ◽  
Perfusion Mr Imaging
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