[Combined use of ECK-triggered 2D-phase contrast MR angiography and 2D-time-of-flight MR angiography for planning and follow up before and after vascular intervention of pelvic and leg arteries].
OBJECTIVE
To develop a strategy for the complete work-up of vessel lumen and vessel wall for planning and follow-up of radiological interventions of lower extremity arteries.


METHODS
A total of 36 patients (21 pre-, 8 post- and 7 pre- and postinterventional) were studied. MRA studies were performed using an ECG-triggered phase contrast technique for the demonstration of intraluminal flow and an axial high resolution time-of-flight technique to assess the vascular wall. All MRA studies were analysed by intraindividual DSA comparison for the assessment of flow and wall structures.


RESULTS
Combined MRA techniques provided a good correlation with DSA for the assessment of vascular flow. The kappa test revealed a value of greater than 0.61 for most on the vessel segments proving a good correlation of both methods. Orthogonal high-resolution TOF-MRA provided additional information for the assessment postinterventional wall haematomas and hard plaques.


CONCLUSIONS
Combination of PCA to study flow and axial TOF to study wall pathology improves the usefulness of peripheral MRA.
Reimer
P
P
Institut für Klinische Radiologie der Westfälischen Wilhelms-Universität Münster.
Wilhelm
M
M
Lentschig
M
M
Wörtler
K
K
Marx
C
C
Allkemper
T
T
Boettger
U
U
Heinecke
A
A
Rummeny
E J
EJ
Peters
P E
PE
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001012:Aorta, Abdominal / Q000473:pathology* / Q000503:physiopathology; D001157:Arterial Occlusive Diseases / Q000175:diagnosis* / Q000503:physiopathology / Q000628:therapy*; D001783:Blood Flow Velocity; D002404:Catheterization; D004562:Electrocardiography; D005260:Female; D005263:Femoral Artery / Q000473:pathology* / Q000503:physiopathology; D005500:Follow-Up Studies; D006801:Humans; D007083:Iliac Artery / Q000473:pathology* / Q000503:physiopathology; D018810:Magnetic Resonance Angiography; D008297:Male; D008875:Middle Aged; D011150:Popliteal Artery / Q000473:pathology; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D015607:Stents