European Radiology: How to achieve undifferentiated MTA assessment among radiologists with different clinical experience?

Medial temporal atrophy (MTA) is an important structural finding associated with Alzheimer's disease, but MTA can also be present in preclinical dementia
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In clinical practice, the interpretation of structural imaging is usually based on a radiologist's visual assessment

Medial temporal atrophy (MTA) is an important structural finding associated with Alzheimer's disease, but MTA can also be present in preclinical dementia

A recent European survey showed that 75% of institutions use VRS in clinical practice, of which 82% frequently use the White Matter Change Scale and 81% use the MTA Scale; other VRS are less common

A study published today in the journal European Radiology assessed the inter-modal consistency of MTA scores in a non-demented population and the accuracy between radiologists with different clinical experience , making it possible to standardize the process of MTA identification and assessment.
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Four raters (two junior radiologists and two senior neuroradiologists) scored MTA on CT and MRI scans using Scheltens' MTA scale

Forty-nine subjects with cognitive impairment (median age 72 years, 27% abnormal MTA) were included in the study

FIG prepared according Scheltens image MTA levels of 5 points example ) .
Each side is scored individually and an overall maximum score is given .
MTA 0=no atrophy, MTA 1=mild widening of the choroidal fissure, MTA 2=moderate widening of the choroidal fissure, mild widening of the temporal horn, and mildly decreased hippocampal height .
MTA 3 = severely widened choroidal fissure, moderately widened temporal horn, moderately decreased hippocampal height, MTA 4 = severely widened choroidal fissure, severely widened temporal horn, severely decreased hippocampal height .
 

FIG prepared according Scheltens image MTA levels of 5 points example ) .

Each side is scored individually and an overall maximum score is given .
MTA 0=no atrophy, MTA 1=mild widening of the choroidal fissure, MTA 2=moderate widening of the choroidal fissure, mild widening of the temporal horn, and mildly decreased hippocampal height .
MTA 3 = severely widened choroidal fissure, moderately widened temporal horn, moderately decreased hippocampal height, MTA 4 = severely widened choroidal fissure, severely widened temporal horn, severely decreased hippocampal height .
FIG prepared according Scheltens image MTA levels of 5 points example ) .
Each side is scored individually and an overall maximum score is given .
MTA 0=no atrophy, MTA 1=mild widening of the choroidal fissure, MTA 2=moderate widening of the choroidal fissure, mild widening of the temporal horn, and mildly decreased hippocampal height .
MTA 3 = severely widened choroidal fissure, moderately widened temporal horn, moderately decreased hippocampal height, MTA 4 = severely widened choroidal fissure, severely widened temporal horn, severely decreased hippocampal height .
 

The present study shows that when the Scheltens MTA scale was used to score MTA in non-demented populations, radiologists with different clinical experience reached sufficient agreement across different modalities with similar accuracy
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However, TPR differed between raters, possibly due to differences in scoring >

The present study shows that when the Scheltens MTA scale was used to score MTA in non-demented populations, radiologists with different clinical experience reached sufficient agreement across different modalities with similar accuracy

Original source :

Original source :

Claes Håkansson , Ashkan Tamaddon , Henrik Andersson , et al.

Inter-modality assessment of medial temporal lobe atrophy in a non-demented population: application of a visual rating scale template across radiologists with varying clinical experience.
DOI: 10.
1007/s00330-021- 08177-1

Claes Håkansson Ashkan Tamaddon Henrik Andersson 10.
1007/s00330-021-08177-1 Leave a message here