{
  "ptid_time": "011_S_0326_2006-03-20",
  "img_path": "/data/qiuhui/data/adni/images/011_S_0326/2006-03-20/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 55,794 mm³, 44.9% above the reference mean. With a Z-score of 1.07 (85.9th percentile), this represents mild enlargement; whole brain volume measures 1,042,270 mm³, 3.4% below the reference mean. With a Z-score of -0.45 (32.8th percentile), this represents normal volume . ",
  "text_data": "Age is 76.9 years. Gender is Male. Education: 16 years. Handedness: Right. Race: White. Medical history: Head, Eyes, Ears, Nose and Throat; Cardiovascular; Respiratory; Musculoskeletal; Hematopoietic-Lymphatic; Alcohol Abuse; Malignancy; Major Surgical Procedures. MMSE: 27.0. Logical Memory: 0.0. APOEε4 alleles: 0.0. Biomarker levels: Total tau: 257.60 pg/mL (normal ); Phosphorylated tau: 24.04 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The ventricular volume is mildly enlarged (44.9% above reference mean, Z-score 1.07), while whole brain volume is within normal limits (3.4% below reference mean, Z-score -0.45). The MMSE score of 27 is normal, and biomarkers (T-tau, P-tau) are unremarkable, with no APOE4 risk alleles.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** Medium (mild ventricular enlargement could warrant monitoring, but no other indicators of MCI/dementia)",
  "timestamp": "2025-07-25T22:45:01.599230"
}