{
  "ptid_time": "024_S_1400_2007-11-26",
  "img_path": "/data/qiuhui/data/adni/images/024_S_1400/2007-11-26/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 30,462 mm³, 20.9% below the reference mean. With a Z-score of -0.50 (30.8th percentile), this represents normal volume ; whole brain volume measures 952,020 mm³, 11.8% below the reference mean. With a Z-score of -1.53 (6.3th percentile), this represents moderate atrophy. ",
  "text_data": "Age is 78.4 years. Gender is Male. Education: 12 years. MMSE: 26.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The patient shows moderate whole brain atrophy (Z-score -1.53, 6.3th percentile) but normal ventricular volume. The MMSE score of 26 is borderline (normal range typically 24-30 for this age), and the absence of APOE4 reduces genetic risk.  \nDiagnosis: Mild Cognitive Impairment (MCI)  \nConfidence: Medium",
  "timestamp": "2025-07-26T03:15:53.226374"
}