{
  "ptid_time": "031_S_1066_2006-11-10",
  "img_path": "/data/qiuhui/data/adni/images/031_S_1066/2006-11-10/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 29,118 mm³, 24.4% below the reference mean. With a Z-score of -0.58 (27.9th percentile), this represents normal volume ; whole brain volume measures 936,427 mm³, 13.2% below the reference mean. With a Z-score of -1.72 (4.3th percentile), this represents moderate atrophy. ",
  "text_data": "Age is 72.4 years. Gender is Male. Education: 13 years. Handedness: Right. Race: White. Medical history: Neurologic; Head, Eyes, Ears, Nose and Throat; Cardiovascular; Dermatologic-Connective Tissue; Musculoskeletal; Endocrine-Metabolic; Alcohol Abuse; Smoking; Malignancy; Major Surgical Procedures. MMSE: 29.0. Logical Memory: 3.0. APOEε4 alleles: 2.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The patient shows moderate whole brain atrophy (Z-score -1.72, 4.3rd percentile) but normal ventricular volume. Despite this structural change, cognitive performance (MMSE 29/30) remains intact, and APOE4 homozygosity increases Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (structural changes concerning but unimpaired cognition)",
  "timestamp": "2025-07-26T04:39:15.718459"
}