{
  "ptid_time": "012_S_4188_2013-10-08",
  "img_path": "/data/qiuhui/data/adni/images/012_S_4188/2013-10-08/t1.nii.gz",
  "img_finding": "Image findings: hippocampal volume measures 6,171 mm³, 18.4% below the reference mean. With a Z-score of -1.79 (3.7th percentile), this represents moderate atrophy; whole brain volume measures 1,082,510 mm³, 0.3% above the reference mean. With a Z-score of 0.04 (51.5th percentile), this represents normal volume . ",
  "text_data": "Age is 79.2 years. Gender is Male. Education: 14 years. MMSE: 28.0. MoCA: 21.0. Logical Memory: 0.0. APOEε4 alleles: 1.0. Biomarker levels: Florbetapir (AV45): 1.20 SUVR (normal ); Amyloid beta: 447.80 pg/mL (moderate reduced); Total tau: 293.90 pg/mL (normal ); Phosphorylated tau: 27.81 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The patient shows moderate hippocampal atrophy (Z-score -1.79) but normal whole brain volume. Cognitive testing reveals a discrepancy between MMSE (normal) and MoCA (mild impairment), along with moderately reduced Aβ, suggesting early neurodegenerative changes.  \n**Diagnosis:** **Mild Cognitive Impairment (MCI)**  \n**Confidence:** **Medium** (due to conflicting MMSE/MoCA results and lack of severe biomarker abnormalities)",
  "timestamp": "2025-07-25T23:13:47.398821"
}