{
  "ptid_time": "014_S_0557_2006-05-31",
  "img_path": "/data/qiuhui/data/adni/images/014_S_0557/2006-05-31/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 20,103 mm³, 47.8% below the reference mean. With a Z-score of -1.15 (12.6th percentile), this represents mild atrophy; hippocampal volume measures 7,869 mm³, 4.1% above the reference mean. With a Z-score of 0.40 (65.5th percentile), this represents normal volume ; whole brain volume measures 1,054,640 mm³, 2.3% below the reference mean. With a Z-score of -0.30 (38.3th percentile), this represents normal volume ; entorhinal cortex volume measures 4,116 mm³, 0.4% above the reference mean. With a Z-score of 0.03 (51.0th percentile), this represents normal volume ; fusiform gyrus volume measures 17,515 mm³, 7.0% below the reference mean. With a Z-score of -0.60 (27.5th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,779 mm³, 2.1% above the reference mean. With a Z-score of 0.19 (57.4th percentile), this represents normal volume . ",
  "text_data": "Age is 72.0 years. Gender is Male. Education: 20 years. Handedness: Right. Race: White. Medical history: Psychiatric; Cardiovascular; Major Surgical Procedures. MMSE: 30.0. Logical Memory: 7.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain imaging shows mild ventricular atrophy but otherwise normal volumes in key regions (hippocampus, entorhinal cortex, fusiform gyrus, middle temporal gyrus). The MMSE score of 30 is intact, and while APOE4 is a risk factor, there are no significant structural or cognitive deficits suggestive of neurodegeneration.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-25T23:43:22.618799"
}