{
  "ptid_time": "032_S_0214_2012-04-12",
  "img_path": "/data/qiuhui/data/adni/images/032_S_0214/2012-04-12/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 54,637 mm³, 41.9% above the reference mean. With a Z-score of 1.00 (84.2th percentile), this represents mild enlargement; hippocampal volume measures 6,080 mm³, 19.6% below the reference mean. With a Z-score of -1.91 (2.8th percentile), this represents moderate atrophy; whole brain volume measures 1,113,070 mm³, 3.1% above the reference mean. With a Z-score of 0.40 (65.7th percentile), this represents normal volume ; entorhinal cortex volume measures 2,954 mm³, 28.0% below the reference mean. With a Z-score of -1.90 (2.9th percentile), this represents moderate atrophy; fusiform gyrus volume measures 15,509 mm³, 17.7% below the reference mean. With a Z-score of -1.51 (6.6th percentile), this represents moderate atrophy; middle temporal gyrus volume measures 16,706 mm³, 21.7% below the reference mean. With a Z-score of -1.95 (2.5th percentile), this represents moderate atrophy. ",
  "text_data": "Age is 71.1 years. Gender is Male. Education: 18 years. Handedness: Right. Race: White. Medical history: Psychiatric; Cardiovascular; Dermatologic-Connective Tissue; Musculoskeletal; Endocrine-Metabolic; Renal-Genitourinary; Allergies or Drug Sensitivities; Major Surgical Procedures. MMSE: 20.0. MoCA: 16.0. Logical Memory: 11.0. APOEε4 alleles: 2.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "**Reasoning:** The imaging data shows significant atrophy in key Alzheimer's-related regions (hippocampus, entorhinal cortex, fusiform gyrus, middle temporal gyrus), alongside mild ventricular enlargement. The cognitive scores (MMSE 20, MoCA 16) indicate substantial impairment, and the presence of two APOE4 alleles further supports Alzheimer's pathology.  \n\n**Diagnosis:** Dementia (likely Alzheimer’s disease)  \n**Confidence:** High",
  "timestamp": "2025-07-26T04:54:20.823218"
}