CMR. Color-encoded phase contrast sequence velocity mapping sequence in the 4-chamber long axis view, demonstrating a systolic jet next to the mid-ventricular septum (arrow) corresponding to the flow through the restrictive VSD

ASVIDE ◽  
2017 ◽  
Vol 4 ◽  
pp. 182-182
Author(s):  
Lilia M. Sierra-Galan ◽  
Angel L. Alberto-Delgado ◽  
Ana-Camila Flores-Ventura ◽  
Eugenio A. ora Ruesga-Zam ◽  
Raquel Mendoza-Aguilar ◽  
...  
Keyword(s):  
Phase Contrast ◽  
Ventricular Septum ◽  
Velocity Mapping ◽  
Mapping Sequence ◽  
Flow Through ◽  
Axis View ◽  
Phase Contrast Sequence

Magnetic resonance velocity imaging using a fast spiral phase contrast sequence

1994 ◽  
Vol 32 (4) ◽  
pp. 476-483 ◽  
Author(s):  
G. Bruce Pike ◽  
Craig H. Meyer ◽  
Thomas J. Brosnan ◽  
Norbert J. Pelc
Keyword(s):  
Magnetic Resonance ◽  
Phase Contrast ◽  
Velocity Imaging ◽  
Spiral Phase ◽  
Phase Contrast Sequence

Magnetresonanzphasenkontrastgeschwindigkeitsmessungen als noninvasive Nachbeobachtungsmaßnahme nach perkutaner transluminaler Angioplastie

VASA ◽  
2002 ◽  
Vol 31 (4) ◽  
pp. 235-240 ◽  
Author(s):  
Heverhagen ◽  
Wagner ◽  
Bandorski ◽  
Hoppe ◽  
Alfke
Keyword(s):  
Phase Contrast ◽  
Ankle Brachial Index ◽  
Transluminal Angioplasty ◽  
Walking Distance ◽  
Slice Thickness ◽  
Non Invasive ◽  
The Mean ◽  
Percutaneous Transluminal ◽  
Phase Contrast Sequence

Background: The aim of this study was to evaluate magnetic resonance phase contrast velocimetry (MRVL) as a non-invasive follow up tool to assess restenosis after percutaneous transluminal angioplasty (PTA). Patients and methods: We prospectively investigated 51 consecutive patients who underwent PTA of the femoropopliteal region. MRVL was conducted prior, one day, six weeks, twelve weeks and 24 weeks after PTA using a circular polarized extremity coil and a gradient echo sequence (TR/TE 600/6 ms, flip angle 30°, slice thickness 10 mm). Hemodynamic data, derived from the MR phase contrast sequence, allowed to calculate the degree of area stenosis of the lesion treated with PTA. These data were correlated with clinical hemodynamic parameters (ankle-brachial index and walking distance). Results: The mean grade of area stenosis was 69% ± 27% before PTA, 30% ± 20% one day, 29% ± 23% six weeks, 39% ± 17% twelve weeks and 42% ± 18% 24 weeks after PTA and correlated well with clinical data and the post angioplasty clinical course of the patients. Conclusions: Follow up measurements using MRVL are suitable to assess restenosis after PTA and allow quantifying the grade of recurrent stenosis as well as the hemodynamic consequences.

scholarly journals A multi-center inter-manufacturer study of the temporal stability of phase-contrast velocity mapping background offset errors

2012 ◽  
Vol 14 (S1) ◽  
Author(s):  
Peter D Gatehouse ◽  
Marijn P Rolf ◽  
Karin Markenroth Bloch ◽  
Philip J Kilner ◽  
Martin J Graves ◽  
...  
Keyword(s):  
Phase Contrast ◽  
Temporal Stability ◽  
Velocity Mapping

scholarly journals THE COMPARISON OF STROKE VOLUME BY CINE MRI AND PHASE CONTRAST VELOCITY MAPPING

2013 ◽  
Vol 61 (10) ◽  
pp. E945
Author(s):  
Takashi Tanimoto ◽  
Yuichi Ozaki ◽  
Kohei Ishibashi ◽  
Takashi Yamano ◽  
Yasushi Ino ◽  
...  
Keyword(s):  
Stroke Volume ◽  
Phase Contrast ◽  
Cine Mri ◽  
Velocity Mapping

Using magnetic resonance phase-contrast velocity mapping for diagnosing pelvic congestion syndrome

2011 ◽  
Vol 26 (4) ◽  
pp. 157-161 ◽  
Author(s):  
L Q Meneses ◽  
S Uribe ◽  
C Tejos ◽  
M E Andía ◽  
M Fava ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Phase Contrast ◽  
Clinical Suspicion ◽  
The Other ◽  
Invasive Procedures ◽  
Velocity Mapping ◽  
Pelvic Congestion Syndrome ◽  
Gonadal Vein ◽  
Diagnostic Criterion ◽  
Pelvic Congestion

Objective To evaluate phase-contrast velocity mapping (PCVM) as a diagnostic tool for pelvic congestion syndrome and comparing this approach with direct venography. Method We prospectively include nine women with clinical suspicion of pelvic congestion syndrome during a six-month period. All patients underwent a magnetic resonance phase-contrast scan before a direct venography. We considered a case of pelvic congestion syndrome when the PCVM showed a retrograde or slow (less than 5 cm/second) flow in any gonadal vein. This criterion was compared with the standard diagnostic criterion observed from a direct venography. Results Using direct venography we found 14 abnormal veins and all of them were correctly identified by the PCVM. The other four veins were found to be normal by the direct venography. However, two of them (the same patient) were abnormal in the PCVM, even though this patient had the classical symptoms of pelvic congestion syndrome. Conclusion PCVM is a useful tool for diagnosing pelvic contrast syndrome and can avoid invasive procedures such as direct venography.

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