Description quick overview with artifact information reason and help for the mri artifact.
Venetian blind artifact mri.
Venetian blind artifact 3d mra only this is a specific artifact seen only with the motsa multiple overlapping thin slab acquisition technique.
Ultrasound features of adenomyosis including asymmetrical uterine wall thickening anteriorly with focal heterogeneity and associated increased blood flow as well as the venetian blind pattern of acoustic shadowing the latter may be seen with either adenomyosis or uterine fibroids.
It has been attributed to either hardening of the tissue in the paraffin block or defective assembly of the microtome knife.
Reformatting artifacts improper mip and reformations may give the false appearance of vessel occlusion or stenosis when it is only partially included in the mip volume.
Venetian blind artifact from motsa because each motsa slab is acquired at separate times exact registration of position and signal intensity of adjacent slabs may not be possible.
Magnetic resonance angiography is used to generate images of arteries and less commonly veins in order to evaluate them for stenosis abnormal narrowing occlusions aneurysms vessel wall dilatations at risk of rupture or other abnormalities.
Venetian blind occurs on multi slab mra typically on reformations and mips when the adjacent slabs are not properly and seamlessly overlapped.
Smaller 3d volume or scans with e g.
Adenomyosis is a common benign uterine condition and a frequent cause of pelvic pain in premenopausal women.
Transvaginal us is now considered the primary imaging modality for the diagnosis of adenomyosis and thus radiologists should be familiar with its sonographic appearance.
The saturation effect of inflowing blood in 3d inflow mra.
The venetian blind a k a.
This gives rise to the so called venetian blind artifacts shown in the image left.
Rain shower 2 appearance is a sonographic finding that is typically associated with adenomyosis but can also occur in uterine fibroids the venetian blind appearance associated with adenomyosis is typically thin whereas when associated with uterine fibroids there are also edge shadows or dense posterior shadowing from calcification 1.
The venetian blinds artifact is an uncommon tissue cutting artifact that leads to the formation of parallel series of strips of tissue separated from one another by narrow clear spaces.
