{
  "ptid_time": "003_S_2374_2013-07-26",
  "img_path": "/data/qiuhui/data/adni/images/003_S_2374/2013-07-26/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 40,533 mm³, 9.7% above the reference mean. With a Z-score of 0.26 (60.3th percentile), this represents normal volume ; hippocampal volume measures 5,978 mm³, 8.0% below the reference mean. With a Z-score of -0.64 (26.2th percentile), this represents normal volume ; whole brain volume measures 1,074,170 mm³, 15.7% above the reference mean. With a Z-score of 1.89 (97.0th percentile), this represents moderate enlargement. ",
  "text_data": "Age is 83.3 years. Gender is Female. Education: 18 years. MMSE: 28.0. MoCA: 24.0. Logical Memory: 13.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 0.96 SUVR (normal ); Total tau: 313.90 pg/mL (normal ); Phosphorylated tau: 25.98 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The hippocampal volume is slightly below the reference mean but still within the normal range (Z-score -0.64, 26.2th percentile). Cognitive scores (MMSE 28, MoCA 24) are borderline for MCI but not indicative of dementia. Biomarkers (T-tau, P-tau, AV45) are normal, and APOE4-negative status lowers Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to borderline MoCA score but otherwise normal biomarkers and volumes)",
  "timestamp": "2025-07-25T20:48:49.619212"
}