{
  "ptid_time": "021_S_0276_2012-03-27",
  "img_path": "/data/qiuhui/data/adni/images/021_S_0276/2012-03-27/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 31,905 mm³, 17.2% below the reference mean. With a Z-score of -0.41 (34.0th percentile), this represents normal volume ; whole brain volume measures 1,126,640 mm³, 4.4% above the reference mean. With a Z-score of 0.57 (71.5th percentile), this represents normal volume . ",
  "text_data": "Age is 76.9 years. Gender is Male. Education: 18 years. Handedness: Left. Race: White. Medical history: Head, Eyes, Ears, Nose and Throat; Musculoskeletal; Renal-Genitourinary; Major Surgical Procedures. MMSE: 29.0. MoCA: 26.0. Logical Memory: 12.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain volumes (ventricular and whole brain) are within normal ranges, and cognitive scores (MMSE 29, MoCA 26) are above typical cutoffs for impairment. The absence of APOE4 further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T01:25:22.431838"
}