{
  "ptid_time": "037_S_1225_2007-02-09",
  "img_path": "/data/qiuhui/data/adni/images/037_S_1225/2007-02-09/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 34,007 mm³, 11.7% below the reference mean. With a Z-score of -0.28 (39.0th percentile), this represents normal volume ; whole brain volume measures 934,645 mm³, 13.4% below the reference mean. With a Z-score of -1.74 (4.1th percentile), this represents moderate atrophy. ",
  "text_data": "Age is 76.4 years. Gender is Male. Education: 20 years. Handedness: Right. Race: White. Medical history: Psychiatric; Head, Eyes, Ears, Nose and Throat; Dermatologic-Connective Tissue; Musculoskeletal; Renal-Genitourinary; Allergies or Drug Sensitivities; Malignancy; Major Surgical Procedures. MMSE: 28.0. Logical Memory: 6.0. APOEε4 alleles: 0.0. Biomarker levels: Amyloid beta: 1275.00 pg/mL (normal ); Total tau: 280.90 pg/mL (normal ); Phosphorylated tau: 22.90 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The patient shows moderate whole brain atrophy (Z-score -1.74, 4.1th percentile) but normal ventricular volume and normal CSF biomarkers (Aβ, T-tau, P-tau). Cognitive performance (MMSE 28/30) is intact, and there is no APOE4 risk allele.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (Brain atrophy is notable, but biomarkers and cognition are normal, suggesting possible aging-related changes rather than pathology)",
  "timestamp": "2025-07-26T06:36:42.240919"
}