{
  "ptid_time": "128_S_0225_2006-09-20",
  "img_path": "/data/qiuhui/data/adni/images/128_S_0225/2006-09-20/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 34,410 mm³, 6.9% below the reference mean. With a Z-score of -0.19 (42.6th percentile), this represents normal volume ; hippocampal volume measures 5,751 mm³, 11.5% below the reference mean. With a Z-score of -0.92 (17.9th percentile), this represents normal volume ; whole brain volume measures 859,933 mm³, 7.4% below the reference mean. With a Z-score of -0.88 (18.9th percentile), this represents normal volume ; entorhinal cortex volume measures 3,258 mm³, 5.9% below the reference mean. With a Z-score of -0.32 (37.5th percentile), this represents normal volume ; fusiform gyrus volume measures 13,764 mm³, 14.6% below the reference mean. With a Z-score of -1.09 (13.7th percentile), this represents mild atrophy; middle temporal gyrus volume measures 16,913 mm³, 6.2% below the reference mean. With a Z-score of -0.55 (29.1th percentile), this represents normal volume . ",
  "text_data": "Age is 82.9 years. Gender is Female. Education: 17 years. MMSE: 27.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain volume measures show mostly normal volumes with mild atrophy in the fusiform gyrus. The MMSE score of 27 is within the normal range (≥26), and there is no APOE4 allele present, which reduces genetic risk for Alzheimer's. The mild atrophy in one region is not sufficient to indicate significant cognitive impairment.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium",
  "timestamp": "2025-07-26T13:38:09.315698"
}