{
  "ptid_time": "051_S_1123_2008-02-21",
  "img_path": "/data/qiuhui/data/adni/images/051_S_1123/2008-02-21/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 17,200 mm³, 38.7% below the reference mean. With a Z-score of -0.89 (18.8th percentile), this represents normal volume ; hippocampal volume measures 6,978 mm³, 1.9% below the reference mean. With a Z-score of -0.18 (43.0th percentile), this represents normal volume ; whole brain volume measures 852,296 mm³, 12.6% below the reference mean. With a Z-score of -1.58 (5.7th percentile), this represents moderate atrophy; entorhinal cortex volume measures 3,133 mm³, 14.7% below the reference mean. With a Z-score of -0.90 (18.3th percentile), this represents normal volume ; fusiform gyrus volume measures 13,791 mm³, 18.9% below the reference mean. With a Z-score of -1.72 (4.2th percentile), this represents moderate atrophy; middle temporal gyrus volume measures 16,192 mm³, 15.5% below the reference mean. With a Z-score of -1.35 (8.9th percentile), this represents mild atrophy. ",
  "text_data": "Age is 76.8 years. Gender is Female. Education: 16 years. MMSE: 30.0. Logical Memory: 16.0. Laboratory findings: Calcium (EDTA): 10.80 (significant elevated). APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The patient shows moderate atrophy in whole brain and fusiform gyrus volumes, with mild atrophy in the middle temporal gyrus, but hippocampal and entorhinal cortex volumes are normal. Despite these structural changes, the MMSE score of 30 indicates no cognitive impairment.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to structural atrophy without clinical symptoms)",
  "timestamp": "2025-07-26T07:32:56.058866"
}