{
  "ptid_time": "057_S_0934_2008-10-22",
  "img_path": "/data/qiuhui/data/adni/images/057_S_0934/2008-10-22/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 25,851 mm³, 7.9% below the reference mean. With a Z-score of -0.18 (42.8th percentile), this represents normal volume ; hippocampal volume measures 7,094 mm³, 0.3% below the reference mean. With a Z-score of -0.03 (48.9th percentile), this represents normal volume ; whole brain volume measures 917,790 mm³, 5.8% below the reference mean. With a Z-score of -0.73 (23.1th percentile), this represents normal volume ; entorhinal cortex volume measures 3,085 mm³, 16.0% below the reference mean. With a Z-score of -0.98 (16.3th percentile), this represents normal volume ; fusiform gyrus volume measures 18,371 mm³, 8.0% above the reference mean. With a Z-score of 0.73 (76.6th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,854 mm³, 6.9% below the reference mean. With a Z-score of -0.60 (27.6th percentile), this represents normal volume . ",
  "text_data": "Age is 72.0 years. Gender is Female. Education: 10 years. MMSE: 30.0. Logical Memory: 18.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, middle temporal gyrus) fall within normal ranges based on Z-scores and percentiles. The MMSE score of 30 is optimal, and there is no APOE4 allele, which reduces genetic risk for Alzheimer's.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T08:06:26.289909"
}