{
  "ptid_time": "128_S_0770_2007-02-06",
  "img_path": "/data/qiuhui/data/adni/images/128_S_0770/2007-02-06/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 38,513 mm³, 0.0% below the reference mean. With a Z-score of -0.00 (50.0th percentile), this represents normal volume ; hippocampal volume measures 8,115 mm³, 7.4% above the reference mean. With a Z-score of 0.72 (76.3th percentile), this represents normal volume ; whole brain volume measures 996,007 mm³, 7.7% below the reference mean. With a Z-score of -1.00 (15.8th percentile), this represents mild atrophy; entorhinal cortex volume measures 4,030 mm³, 1.7% below the reference mean. With a Z-score of -0.12 (45.4th percentile), this represents normal volume ; fusiform gyrus volume measures 20,051 mm³, 6.4% above the reference mean. With a Z-score of 0.55 (70.8th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,132 mm³, 1.0% below the reference mean. With a Z-score of -0.09 (46.5th percentile), this represents normal volume . ",
  "text_data": "Age is 71.7 years. Gender is Male. Education: 19 years. MMSE: 30.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain imaging shows mild whole brain atrophy (Z-score -1.00, 15.8th percentile), but all other regions, including the hippocampus and entorhinal cortex, are within normal ranges. The MMSE score of 30 is intact, and there is no APOE4 genetic risk factor present.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to mild whole brain atrophy despite normal cognitive scores and other regions)",
  "timestamp": "2025-07-26T13:49:41.353338"
}