{
  "ptid_time": "099_S_0551_2009-06-23",
  "img_path": "/data/qiuhui/data/adni/images/099_S_0551/2009-06-23/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 22,982 mm³, 23.5% below the reference mean. With a Z-score of -0.56 (28.9th percentile), this represents normal volume ; hippocampal volume measures 6,624 mm³, 17.5% below the reference mean. With a Z-score of -1.75 (4.0th percentile), this represents moderate atrophy; whole brain volume measures 1,059,900 mm³, 6.6% below the reference mean. With a Z-score of -0.93 (17.6th percentile), this represents normal volume ; entorhinal cortex volume measures 3,442 mm³, 19.3% below the reference mean. With a Z-score of -1.33 (9.1th percentile), this represents mild atrophy; fusiform gyrus volume measures 14,772 mm³, 25.8% below the reference mean. With a Z-score of -2.15 (1.6th percentile), this represents significant atrophy; middle temporal gyrus volume measures 17,694 mm³, 21.0% below the reference mean. With a Z-score of -1.73 (4.1th percentile), this represents moderate atrophy. ",
  "text_data": "Age is 67.2 years. Gender is Male. Education: 16 years. MMSE: 29.0. Logical Memory: 12.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The hippocampal, entorhinal cortex, fusiform gyrus, and middle temporal gyrus show mild to significant atrophy, which are regions commonly affected in Alzheimer's disease. However, the MMSE score of 29 is within the normal range, and the absence of APOE4 reduces genetic risk.  \nDiagnosis: MCI  \nConfidence: Medium",
  "timestamp": "2025-07-26T10:58:52.789441"
}