{
  "ptid_time": "129_S_2347_2012-03-28",
  "img_path": "/data/qiuhui/data/adni/images/129_S_2347/2012-03-28/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 46,794 mm³, 21.5% above the reference mean. With a Z-score of 0.51 (69.7th percentile), this represents normal volume ; hippocampal volume measures 7,471 mm³, 1.2% below the reference mean. With a Z-score of -0.11 (45.5th percentile), this represents normal volume ; whole brain volume measures 1,110,120 mm³, 2.8% above the reference mean. With a Z-score of 0.37 (64.4th percentile), this represents normal volume ; entorhinal cortex volume measures 4,157 mm³, 1.4% above the reference mean. With a Z-score of 0.09 (53.7th percentile), this represents normal volume ; fusiform gyrus volume measures 19,540 mm³, 3.7% above the reference mean. With a Z-score of 0.32 (62.4th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,644 mm³, 1.4% above the reference mean. With a Z-score of 0.13 (55.1th percentile), this represents normal volume . ",
  "text_data": "Age is 72.0 years. Gender is Male. Education: 18 years. Handedness: Right. Race: White. Medical history: Neurologic; Head, Eyes, Ears, Nose and Throat; Cardiovascular; Respiratory; Musculoskeletal; Endocrine-Metabolic; Gastrointestinal; Renal-Genitourinary; Malignancy; Major Surgical Procedures. MMSE: 30.0. MoCA: 26.0. Logical Memory: 8.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volume measures (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) are within normal ranges, with Z-scores close to zero. Cognitive screening (MMSE 30, MoCA 26) is intact, though MoCA is slightly below the typical cutoff for normal (≥26). APOE4 carrier status is a risk factor but does not confirm pathology.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** Medium (due to slightly low MoCA, but no structural or significant cognitive deficits)",
  "timestamp": "2025-07-26T14:13:10.715389"
}