{
  "ptid_time": "029_S_1384_2007-03-28",
  "img_path": "/data/qiuhui/data/adni/images/029_S_1384/2007-03-28/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 62,165 mm³, 61.4% above the reference mean. With a Z-score of 1.47 (92.9th percentile), this represents mild enlargement; whole brain volume measures 1,068,570 mm³, 1.0% below the reference mean. With a Z-score of -0.13 (44.8th percentile), this represents normal volume . ",
  "text_data": "Age is 72.0 years. Gender is Male. Education: 16 years. Handedness: Right. Race: White. Medical history: Psychiatric; Neurologic; Head, Eyes, Ears, Nose and Throat; Cardiovascular; Musculoskeletal; Renal-Genitourinary; Allergies or Drug Sensitivities; Smoking. MMSE: 25.0. Logical Memory: 4.0. APOEε4 alleles: 2.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The ventricular volume is mildly enlarged (61.4% above reference mean, Z-score 1.47), suggesting possible atrophy, while whole brain volume is normal (Z-score -0.13). The MMSE score of 25 is borderline, and the presence of two APOE4 alleles increases Alzheimer's risk.  \n\n**Diagnosis:** **Mild Cognitive Impairment (MCI)**  \n**Confidence:** **Medium** (due to borderline MMSE and APOE4 status, but no clear dementia-level impairment yet)",
  "timestamp": "2025-07-26T04:24:26.542995"
}