Figure 1.
Flowchart portraying the study design.
Table 1.
Clinical and demographic characteristics of the study population.
Figure 2.
Sequence flow of the combined first-pass and steady-state MR angiographic protocol and technical parameters of T1-weighted gradient-echo sequences for first-pass and steady-state MR angiography.
Figure 3.
MR-angiographic and duplex sonographic images of the great saphenous vein.
Magnetic resonance imaging (BPCA-MRA) and color-coded duplex sonography in the proximal level of the left GSV of a 63 year old female patient who suffered from PAOD stage III and was referred to the radiological department for assessment of the arterial status prior to a proposed bypass surgery. (a, b) Axial multiplanar reformat of contrast-enhanced T1-weighted gradient-echo images during the steady-state. (c) Axial color-coded duplex sonography.
Figure 4.
MR-angiographic and duplex sonographic images of the great saphenous vein.
Magnetic resonance imaging (BPCA-MRA) and color-coded duplex sonography in the distal level of the left GSV in a 69 year old male patient with PAOD stage IV. (a, b) Axial multiplanar reformat of contrast-enhanced T1-weighted gradient-echo images during the steady-state. (c) Axial color-coded duplex sonography.
Figure 5.
MR-angiographic and duplex sonographic images of the great saphenous vein.
Magnetic resonance imaging (BPCA-MRA) and color-coded duplex sonography in the proximal level of the left GSV of a 69 year old male patient who suffered from ulcerations of the lower leg. (a, b) Axial multiplanar reformat of contrast-enhanced T1-weighted gradient-echo images during the steady-state. (c) Axial color-coded duplex sonography.
Figure 6.
Intraoperative measurement of the dissected great saphenous vein.
Figure 7.
Correlation between MR-angiographic (MRA) and duplex sonographic (DUS) values in the three levels.
Pearson correlation coefficients R2: level 1: 0.989; level 2: 0.986, level 3: 0.973.
Figure 8.
Multiplanar reformat of an MR-angiographic image of the great saphenous vein.
The GSV displayed as a curved multiplanar reformat of high-spatial-resolution contrast-enhanced T1-weighted gradient-echo images during the steady-state of a 57 year old male patient suffering from PAOD stage III and thus being evaluated for bypass surgery.