{
  "ptid_time": "098_S_0896_2009-10-12",
  "img_path": "/data/qiuhui/data/adni/images/098_S_0896/2009-10-12/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 57,637 mm³, 49.6% above the reference mean. With a Z-score of 1.19 (88.3th percentile), this represents mild enlargement; hippocampal volume measures 6,311 mm³, 16.5% below the reference mean. With a Z-score of -1.61 (5.4th percentile), this represents moderate atrophy; whole brain volume measures 1,129,620 mm³, 4.7% above the reference mean. With a Z-score of 0.60 (72.7th percentile), this represents normal volume ; entorhinal cortex volume measures 2,954 mm³, 28.0% below the reference mean. With a Z-score of -1.90 (2.9th percentile), this represents moderate atrophy; fusiform gyrus volume measures 17,705 mm³, 6.0% below the reference mean. With a Z-score of -0.51 (30.4th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,191 mm³, 0.7% below the reference mean. With a Z-score of -0.06 (47.5th percentile), this represents normal volume . ",
  "text_data": "Age is 79.8 years. Gender is Male. Education: 16 years. MMSE: 29.0. Logical Memory: 10.0. APOEε4 alleles: 0.0. Biomarker levels: Amyloid beta: 922.20 pg/mL (normal ); Total tau: 219.60 pg/mL (normal ); Phosphorylated tau: 17.94 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The patient shows moderate atrophy in the hippocampus and entorhinal cortex, which are key regions affected in Alzheimer's disease, despite normal Aβ, T-tau, and P-tau levels. The MMSE score of 29 is within the normal range, suggesting no significant cognitive impairment at this time.  \nDiagnosis: MCI (Mild Cognitive Impairment)  \nConfidence: Medium",
  "timestamp": "2025-07-26T10:42:36.143562"
}