{
  "ptid_time": "037_S_0303_2008-05-06",
  "img_path": "/data/qiuhui/data/adni/images/037_S_0303/2008-05-06/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 34,596 mm³, 26.4% below the reference mean. With a Z-score of -0.77 (22.1th percentile), this represents normal volume ; hippocampal volume measures 5,963 mm³, 14.4% below the reference mean. With a Z-score of -1.25 (10.6th percentile), this represents mild atrophy; whole brain volume measures 939,248 mm³, 8.7% below the reference mean. With a Z-score of -1.14 (12.6th percentile), this represents mild atrophy; entorhinal cortex volume measures 3,740 mm³, 5.8% below the reference mean. With a Z-score of -0.38 (35.3th percentile), this represents normal volume ; fusiform gyrus volume measures 17,425 mm³, 3.5% below the reference mean. With a Z-score of -0.31 (37.9th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,674 mm³, 12.4% below the reference mean. With a Z-score of -1.11 (13.4th percentile), this represents mild atrophy. ",
  "text_data": "Age is 86.2 years. Gender is Male. Education: 16 years. MMSE: 30.0. Logical Memory: 17.0. Laboratory findings: Triglycerides (GPO): 292.00 (profound elevated). APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The patient shows mild atrophy in the hippocampus, whole brain, and middle temporal gyrus, but other regions (ventricular, entorhinal cortex, fusiform gyrus) are within normal limits. Despite structural changes, cognitive performance (MMSE 30/30) remains intact, suggesting no functional impairment.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** Medium (Structural changes may precede cognitive decline, but current MMSE is normal for age.)",
  "timestamp": "2025-07-26T06:25:37.196124"
}