{
  "ptid_time": "003_S_1021_2006-11-01",
  "img_path": "/data/qiuhui/data/adni/images/003_S_1021/2006-11-01/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 23,595 mm³, 36.2% below the reference mean. With a Z-score of -0.98 (16.4th percentile), this represents normal volume ; whole brain volume measures 874,742 mm³, 5.8% below the reference mean. With a Z-score of -0.69 (24.5th percentile), this represents normal volume . ",
  "text_data": "Age is 86.9 years. Gender is Female. Education: 14 years. Handedness: Right. Race: White. Medical history: Cardiovascular; Musculoskeletal; Endocrine-Metabolic; Gastrointestinal; Renal-Genitourinary; Major Surgical Procedures. MMSE: 29.0. Logical Memory: 17.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volumes (ventricular and whole brain) are within normal ranges, and the MMSE score of 29 is well within the normal cognitive range for an 86.9-year-old female. The absence of APOE4 further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-25T20:42:40.850396"
}