Some types of tissue are more prone to certain kinds of artifacts.
Venetian blind artefact mri.
Smaller 3d volume or scans with e g.
While both leiomyomas and adenomyosis can have venetian blind shadows leiomyomas are more likely to have edge shadows or if densely calcified to have impenetrably dense shadows.
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.
It represents overlap between adjacent slabs that are acquired as separate acquisitions and then fused together.
The motsa technique is described in more detail in another q a.
Image guidance and additional resources lead to improved image quality.
The venetian blind a k a.
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.
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.
Rain shower 2 appearance is a sonographic finding that is typically associated with adenomyosis but can also occur in uterine fibroids.
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.
The saturation effect of inflowing blood in 3d inflow mra.
It has been attributed to either hardening of the tissue in the paraffin block or defective assembly of the microtome knife.
Description quick overview with artifact information reason and help for the mri artifact.
Description quick overview with artifact information reason and help for the mri artifact.
Shadowing from leiomyomas can sometimes completely obscure the adenomyosis and mri may be required particularly when contemplating treatment.
Thick thin areas venetian blinds washboarding undulations and skipping.
This gives rise to the so called venetian blind artifacts shown in the image left.
Ultimately since both leiomyomas and adenomyosis are common they can coexist.
A processing strategy for correcting stripe artifacts in diffusion mri data conference paper pdf available october 2017 with 299 reads how we measure reads.
Venetian blind artifact 3d mra only this is a specific artifact seen only with the motsa multiple overlapping thin slab acquisition technique.
