{
  "ptid_time": "014_S_4401_2011-12-02",
  "img_path": "/data/qiuhui/data/adni/images/014_S_4401/2011-12-02/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 19,925 mm³, 10.8% below the reference mean. With a Z-score of -0.27 (39.3th percentile), this represents normal volume ; hippocampal volume measures 7,868 mm³, 2.4% above the reference mean. With a Z-score of 0.27 (60.6th percentile), this represents normal volume ; whole brain volume measures 1,122,500 mm³, 9.1% above the reference mean. With a Z-score of 1.13 (87.1th percentile), this represents mild enlargement; entorhinal cortex volume measures 3,905 mm³, 0.3% above the reference mean. With a Z-score of 0.02 (51.0th percentile), this represents normal volume ; fusiform gyrus volume measures 19,216 mm³, 5.5% above the reference mean. With a Z-score of 0.62 (73.3th percentile), this represents normal volume ; middle temporal gyrus volume measures 25,453 mm³, 24.0% above the reference mean. With a Z-score of 2.14 (98.4th percentile), this represents significant enlargement. ",
  "text_data": "Age is 67.5 years. Gender is Female. Education: 20 years. Handedness: Right. Race: White. Medical history: Head, Eyes, Ears, Nose and Throat; Cardiovascular; Dermatologic-Connective Tissue; Musculoskeletal; Malignancy; Major Surgical Procedures. MMSE: 30.0. MoCA: 29.0. Logical Memory: 17.0. Laboratory findings: MCH: 34.00 (significant elevated); Basophils: 0.15 (profound elevated); Lymphocytes: 13.40 (significant reduced); Basophils: 2.50 (profound elevated); Lymphocytes: 0.78 (significant reduced); Serum Glucose: 122.00 (significant elevated); Total Protein: 6.20 (significant reduced). APOEε4 alleles: 1.0. Biomarker levels: Florbetapir (AV45): 1.07 SUVR (normal ); Total tau: 342.60 pg/mL (mild elevated); Phosphorylated tau: 32.26 pg/mL (mild elevated). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements are largely within or above the reference range, with no significant atrophy in key regions like the hippocampus or entorhinal cortex. Cognitive scores (MMSE 30, MoCA 29) are intact, and while T-tau and P-tau are mildly elevated, AV45 (amyloid PET) is normal, suggesting no significant amyloid pathology.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-25T23:54:30.990163"
}