{
  "ptid_time": "126_S_1077_2007-06-21",
  "img_path": "/data/qiuhui/data/adni/images/126_S_1077/2007-06-21/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 45,332 mm³, 3.6% below the reference mean. With a Z-score of -0.10 (45.9th percentile), this represents normal volume ; hippocampal volume measures 7,338 mm³, 5.3% above the reference mean. With a Z-score of 0.46 (67.7th percentile), this represents normal volume ; whole brain volume measures 977,114 mm³, 5.1% below the reference mean. With a Z-score of -0.66 (25.4th percentile), this represents normal volume ; entorhinal cortex volume measures 3,701 mm³, 6.8% below the reference mean. With a Z-score of -0.44 (32.9th percentile), this represents normal volume ; fusiform gyrus volume measures 15,206 mm³, 15.8% below the reference mean. With a Z-score of -1.37 (8.5th percentile), this represents mild atrophy; middle temporal gyrus volume measures 19,356 mm³, 4.0% below the reference mean. With a Z-score of -0.36 (35.8th percentile), this represents normal volume . ",
  "text_data": "Age is 83.8 years. Gender is Male. Education: 15 years. MMSE: 29.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain volume measures show mostly normal values, with only mild atrophy in the fusiform gyrus. The MMSE score of 29 is within the normal range, and there is no APOE4 allele present, which reduces genetic risk for Alzheimer's.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T12:41:54.322935"
}