{
  "ptid_time": "010_S_0904_2007-06-12",
  "img_path": "/data/qiuhui/data/adni/images/010_S_0904/2007-06-12/t1.nii.gz",
  "img_finding": "Image findings: hippocampal volume measures 7,704 mm³, 10.6% above the reference mean. With a Z-score of 0.91 (81.9th percentile), this represents normal volume ; whole brain volume measures 1,128,540 mm³, 9.7% above the reference mean. With a Z-score of 1.27 (89.7th percentile), this represents mild enlargement; entorhinal cortex volume measures 3,525 mm³, 11.2% below the reference mean. With a Z-score of -0.73 (23.2th percentile), this represents normal volume ; fusiform gyrus volume measures 19,505 mm³, 8.0% above the reference mean. With a Z-score of 0.69 (75.5th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,170 mm³, 4.9% above the reference mean. With a Z-score of 0.44 (67.1th percentile), this represents normal volume . ",
  "text_data": "Age is 84.6 years. Gender is Male. Education: 16 years. MMSE: 28.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The hippocampal and whole brain volumes are above the reference mean, with normal or mildly enlarged Z-scores, while the entorhinal cortex is slightly below the mean but still within normal range. The MMSE score of 28 is within the normal range, and the absence of APOE4 alleles reduces genetic risk. No significant atrophy or cognitive impairment is evident.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-25T22:34:24.127375"
}