{
  "ptid_time": "032_S_0095_2007-03-07",
  "img_path": "/data/qiuhui/data/adni/images/032_S_0095/2007-03-07/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 14,427 mm³, 62.5% below the reference mean. With a Z-score of -1.50 (6.7th percentile), this represents mild atrophy; hippocampal volume measures 7,724 mm³, 2.2% above the reference mean. With a Z-score of 0.21 (58.4th percentile), this represents normal volume ; whole brain volume measures 1,029,220 mm³, 4.6% below the reference mean. With a Z-score of -0.60 (27.3th percentile), this represents normal volume ; entorhinal cortex volume measures 3,567 mm³, 13.0% below the reference mean. With a Z-score of -0.88 (18.9th percentile), this represents normal volume ; fusiform gyrus volume measures 13,590 mm³, 27.9% below the reference mean. With a Z-score of -2.37 (0.9th percentile), this represents significant atrophy; middle temporal gyrus volume measures 20,980 mm³, 1.7% below the reference mean. With a Z-score of -0.15 (44.0th percentile), this represents normal volume . ",
  "text_data": "Age is 72.1 years. Gender is Male. Education: 12 years. MMSE: 27.0. Logical Memory: 10.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The data shows mild ventricular enlargement (suggesting some atrophy) and significant atrophy in the fusiform gyrus, but hippocampal and most other regional volumes are within normal ranges. The MMSE score of 27 is within the normal range, and there is no APOE4 genetic risk factor.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** Medium (due to the fusiform gyrus atrophy, but preserved cognition and other structures suggest no significant impairment)",
  "timestamp": "2025-07-26T04:51:48.823966"
}