{
  "ptid_time": "137_S_0158_2006-02-14",
  "img_path": "/data/qiuhui/data/adni/images/137_S_0158/2006-02-14/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 13,407 mm³, 63.7% below the reference mean. With a Z-score of -1.72 (4.3th percentile), this represents moderate atrophy; whole brain volume measures 861,351 mm³, 7.2% below the reference mean. With a Z-score of -0.86 (19.4th percentile), this represents normal volume . ",
  "text_data": "Age is 80.4 years. Gender is Female. Education: 13 years. Handedness: Right. Race: White. Medical history: Psychiatric; Head, Eyes, Ears, Nose and Throat; Cardiovascular; Musculoskeletal; Endocrine-Metabolic; Gastrointestinal; Hematopoietic-Lymphatic; Renal-Genitourinary; Major Surgical Procedures. MMSE: 29.0. Logical Memory: 4.0. APOEε4 alleles: 0.0. Biomarker levels: Total tau: 248.30 pg/mL (normal ); Phosphorylated tau: 21.69 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The ventricular volume shows moderate atrophy, but whole brain volume is within normal range. MMSE score is high (29/30), and biomarkers (T-tau, P-tau) are normal, suggesting no significant cognitive impairment.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to moderate ventricular atrophy but otherwise normal findings)",
  "timestamp": "2025-07-26T16:06:52.436056"
}