{
  "ptid_time": "027_S_1045_2006-11-03",
  "img_path": "/data/qiuhui/data/adni/images/027_S_1045/2006-11-03/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 31,693 mm³, 14.3% below the reference mean. With a Z-score of -0.38 (35.0th percentile), this represents normal volume ; whole brain volume measures 946,164 mm³, 1.9% above the reference mean. With a Z-score of 0.23 (59.2th percentile), this represents normal volume . ",
  "text_data": "Age is 82.6 years. Gender is Female. Education: 14 years. Handedness: Right. Race: White. Medical history: Psychiatric; Neurologic; Head, Eyes, Ears, Nose and Throat; Dermatologic-Connective Tissue; Musculoskeletal; Gastrointestinal; Renal-Genitourinary; Major Surgical Procedures. MMSE: 26.0. Logical Memory: 4.0. APOEε4 alleles: 0.0. Biomarker levels: Total tau: 252.30 pg/mL (normal ); Phosphorylated tau: 19.72 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The ventricular and whole brain volumes are within normal ranges, and the MMSE score of 26 is borderline but not definitively impaired. Biomarkers (T-tau, P-tau) are normal, and the absence of APOE4 reduces genetic risk.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** Medium (MMSE is slightly below typical cutoff for normality, but other markers support CN)",
  "timestamp": "2025-07-26T03:44:00.527866"
}