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Table 2 Image quality evaluation of APTw images

From: Using amide proton transfer-weighted MRI to non-invasively differentiate mismatch repair deficient and proficient tumors in endometrioid endometrial adenocarcinoma

Image scores Scale of marks Reader 1 Reader 2 Reader 3
5 Good image quality with tumor detectable and lesion contour clearly delineated on APTw images n = 6 n = 5 n = 6
4 Tumor lesion could be recognized on APTw images, but contour was not so well delineated, reference information on conventional MR images needed for region of interest (ROI) analysis n = 17 n = 20 n = 18
3 Tumor undetectable without reference to conventional MR images n = 12 n = 10 n = 11
2 Poor APTw image quality with obvious artifacts, although the tumor lesion was revealed on conventional MR images n = 12 n = 11 n = 10
1 No lesions were identified on APTw or any conventional MR images n = 2 n = 3 n = 4
  1. APTw amide proton transfer-weighted