{
  "ptid_time": "067_S_0290_2006-03-28",
  "img_path": "/data/qiuhui/data/adni/images/067_S_0290/2006-03-28/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 62,469 mm³, 62.2% above the reference mean. With a Z-score of 1.49 (93.2th percentile), this represents mild enlargement; whole brain volume measures 1,060,960 mm³, 1.7% below the reference mean. With a Z-score of -0.22 (41.2th percentile), this represents normal volume . ",
  "text_data": "Age is 75.2 years. Gender is Male. Education: 16 years. Handedness: Right. Race: White. Medical history: Neurologic; Cardiovascular; Renal-Genitourinary; Smoking; Major Surgical Procedures. MMSE: 28.0. Logical Memory: 7.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The ventricular volume is mildly enlarged (62.2% above reference mean), but whole brain volume is within normal limits (-1.7% below reference mean). The MMSE score of 28 is normal, and the APOE4 status (heterozygous) is a risk factor but not diagnostic.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (ventricular enlargement could suggest early changes, but cognitive performance remains intact)",
  "timestamp": "2025-07-26T08:28:46.315830"
}