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 artefact mri.
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.
It represents overlap between adjacent slabs that are acquired as separate acquisitions and then fused together.
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.
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.
Image guidance and additional resources lead to improved image quality.
Some types of tissue are more prone to certain kinds of artifacts.
The summary below examines the most common microtomy artifacts that can be seen under the microscope when viewing stained tissue sections.
Thick thin areas venetian blinds washboarding undulations and skipping.
Ultimately since both leiomyomas and adenomyosis are common they can coexist.
Venetian blind artifact 3d mra only this is a specific artifact seen only with the motsa multiple overlapping thin slab acquisition technique.
It has been attributed to either hardening of the tissue in the paraffin block or defective assembly of the microtome knife.
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.
Closing the venetian blinds.
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.
Smaller 3d volume or scans with e g.
Rain shower 2 appearance is a sonographic finding that is typically associated with adenomyosis but can also occur in uterine fibroids.
Description quick overview with artifact information reason and help for the mri artifact.
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.
This gives rise to the so called venetian blind artifacts shown in the image left.
In some cases adenomyosis can be overlooked in the presence of large leiomyomas.
