Susceptibility weighted imaging of superficial cerebellar veins / 解剖学报

ABSTRACT

[Abstract] ObjectVisualizing the superficial cerebellar vein and its tributaries on suscepxibility weighted imaging (SWI), and to construct superficial cerebellar vein network. Methods According to the inclusion criteria, 80 healthy volunteers (40 males and 40 females) were selected for 3. 0 T MRI scans to obtain conventional sequence cross-section, sagittal tomographic images, and SWI image data. Post-processing was performed on the Extended MR workspace 2. 6. 3. 4 image workstation to reconstruct minimum intensity projection(mIP) images. SPSS 21. 0 statistical software was used to analyze and process each data, and the diameter measurement result were expressed as mean ± standard deviation. Results Both SWI and mIP could image the structures of the cerebellum and its veins. The cerebellar veins were divided into deep and superficial parts. The superficial cerebellar veins were divided into two groups the vermis and the cerebellar hemispheres. The superficial vein of the cerebellar vermis consisted of superior vermis vein [diameter (1. 21±0. 24)mm, occurrence rate 92. 16%], summit vein [ diameter (0. 66 ± 0. 05) mm, occurrence rate 95%], mountain vein [diameter (0. 76±0. 03)mm, occurrence rate 100%], inferior vermis vein [diameter (1. 40±0. 27)mm, occurrence rate 99. 02%]. The superficial cerebellar hemisphere vein consists of anterior superior cerebellar vein [diameter (1. 09± 0. 12)mm, occurrence rate 100%], posterior superior cerebellar vein [diameter (0. 88±0. 13) mm, occurrence rate 70%], anterior inferior cerebellar vein [ diameter (1. 34 ± 0. 15) mm, occurrence rate 100%], posterior inferior cerebellar vein [ diameter (1. 11 ± 0. 09) mm, occurrence rate 92. 5%]. The deep veins were divided into cerebellomesencephalic fissure group, cerebellopontine fissure group, and cerebellomedullary fissure group. Conclusion SWI can display the microstructure and venules of the cerebellum, and can construct a network of superficial cerebellar veins.