{
  "ptid_time": "128_S_0200_2006-09-14",
  "img_path": "/data/qiuhui/data/adni/images/128_S_0200/2006-09-14/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 12,394 mm³, 58.7% below the reference mean. With a Z-score of -1.40 (8.1th percentile), this represents mild atrophy; hippocampal volume measures 9,275 mm³, 15.5% above the reference mean. With a Z-score of 1.55 (94.0th percentile), this represents moderate enlargement; whole brain volume measures 1,222,320 mm³, 7.7% above the reference mean. With a Z-score of 1.10 (86.3th percentile), this represents mild enlargement; entorhinal cortex volume measures 4,527 mm³, 6.2% above the reference mean. With a Z-score of 0.43 (66.6th percentile), this represents normal volume ; fusiform gyrus volume measures 20,086 mm³, 0.9% above the reference mean. With a Z-score of 0.07 (52.9th percentile), this represents normal volume ; middle temporal gyrus volume measures 22,014 mm³, 1.8% below the reference mean. With a Z-score of -0.15 (44.2th percentile), this represents normal volume . ",
  "text_data": "Age is 61.9 years. Gender is Male. Education: 16 years. MMSE: 30.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain volume data shows mild ventricular atrophy but otherwise normal to above-average volumes in key regions (hippocampus, whole brain, entorhinal cortex, fusiform gyrus, middle temporal gyrus). The MMSE score of 30 is normal, and the absence of APOE4 reduces genetic risk. No cognitive deficits are reported.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T13:35:51.255660"
}