{
  "ptid_time": "127_S_1140_2008-07-08",
  "img_path": "/data/qiuhui/data/adni/images/127_S_1140/2008-07-08/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 26,296 mm³, 44.1% below the reference mean. With a Z-score of -1.28 (10.0th percentile), this represents mild atrophy; hippocampal volume measures 5,697 mm³, 18.2% below the reference mean. With a Z-score of -1.58 (5.7th percentile), this represents moderate atrophy; whole brain volume measures 972,701 mm³, 5.5% below the reference mean. With a Z-score of -0.72 (23.6th percentile), this represents normal volume ; entorhinal cortex volume measures 3,499 mm³, 11.8% below the reference mean. With a Z-score of -0.78 (21.9th percentile), this represents normal volume ; fusiform gyrus volume measures 17,020 mm³, 5.8% below the reference mean. With a Z-score of -0.50 (30.8th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,959 mm³, 11.0% below the reference mean. With a Z-score of -0.98 (16.3th percentile), this represents normal volume . ",
  "text_data": "Age is 85.9 years. Gender is Male. Education: 18 years. MMSE: 27.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The patient shows mild ventricular atrophy and moderate hippocampal atrophy, both of which are associated with Alzheimer's disease, but other brain regions (whole brain, entorhinal cortex, fusiform gyrus, middle temporal gyrus) are within normal ranges. The MMSE score of 27 is borderline normal for age, and the absence of APOE4 reduces genetic risk.  \nDiagnosis: Mild Cognitive Impairment (MCI)  \nConfidence: Medium",
  "timestamp": "2025-07-26T13:07:19.558911"
}