{
  "ptid_time": "073_S_0311_2010-08-25",
  "img_path": "/data/qiuhui/data/adni/images/073_S_0311/2010-08-25/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 46,160 mm³, 24.9% above the reference mean. With a Z-score of 0.67 (74.9th percentile), this represents normal volume ; whole brain volume measures 809,491 mm³, 12.8% below the reference mean. With a Z-score of -1.53 (6.2th percentile), this represents moderate atrophy. ",
  "text_data": "Age is 82.1 years. Gender is Female. Education: 16 years. MMSE: 28.0. Logical Memory: 13.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The patient shows moderate whole brain atrophy (Z-score -1.53, 6.2th percentile) but normal ventricular volume. Despite this, cognitive performance (MMSE 28/30) is intact, and APOE4 status (heterozygous) is only a moderate risk factor.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (Atrophy is concerning, but preserved MMSE and lack of clinical symptoms suggest no significant impairment yet.)",
  "timestamp": "2025-07-26T09:29:36.502550"
}