{
  "ptid_time": "021_S_0984_2012-01-12",
  "img_path": "/data/qiuhui/data/adni/images/021_S_0984/2012-01-12/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 111,640 mm³, 137.4% above the reference mean. With a Z-score of 3.99 (100.0th percentile), this represents profound enlargement; whole brain volume measures 1,030,890 mm³, 0.2% above the reference mean. With a Z-score of 0.02 (50.9th percentile), this represents normal volume . ",
  "text_data": "Age is 81.6 years. Gender is Male. Education: 14 years. Handedness: Right. Race: White. Medical history: Psychiatric; Cardiovascular; Endocrine-Metabolic; Gastrointestinal; Renal-Genitourinary; Allergies or Drug Sensitivities; Alcohol Abuse; Smoking. MMSE: 30.0. MoCA: 26.0. Logical Memory: 10.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The ventricular volume is significantly enlarged (Z-score 3.99), suggesting possible atrophy, but whole brain volume is normal. Cognitive scores (MMSE 30, MoCA 26) are borderline for MCI but still within normal limits for age. APOE4 carrier status increases Alzheimer’s risk, but current cognitive performance does not meet dementia criteria.  \n\n**Diagnosis:** **MCI** (mild cognitive impairment)  \n**Confidence:** **Medium** (due to conflicting imaging and cognitive findings, but APOE4 and ventricular enlargement suggest early neurodegenerative changes)",
  "timestamp": "2025-07-26T01:36:05.306947"
}