{
  "ptid_time": "007_S_6341_2019-06-11",
  "img_path": "/data/qiuhui/data/adni/images/007_S_6341/2019-06-11/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 25,087 mm³, 16.4% below the reference mean. With a Z-score of -0.39 (34.8th percentile), this represents normal volume ; hippocampal volume measures 6,127 mm³, 23.7% below the reference mean. With a Z-score of -2.37 (0.9th percentile), this represents significant atrophy; whole brain volume measures 1,119,440 mm³, 1.3% below the reference mean. With a Z-score of -0.19 (42.5th percentile), this represents normal volume ; entorhinal cortex volume measures 3,534 mm³, 17.1% below the reference mean. With a Z-score of -1.18 (11.8th percentile), this represents mild atrophy; fusiform gyrus volume measures 22,998 mm³, 15.5% above the reference mean. With a Z-score of 1.29 (90.1th percentile), this represents mild enlargement; middle temporal gyrus volume measures 20,545 mm³, 8.3% below the reference mean. With a Z-score of -0.69 (24.6th percentile), this represents normal volume . ",
  "text_data": "Age is 68.1 years. Gender is Male. Education: 12 years. MMSE: 25.0. MoCA: 21.0. Logical Memory: 1.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The hippocampal volume shows significant atrophy (Z-score -2.37, 0.9th percentile), which is a strong biomarker for Alzheimer's disease. The entorhinal cortex also exhibits mild atrophy, further supporting neurodegenerative changes. Cognitive scores (MMSE 25, MoCA 21) are below normal ranges, consistent with cognitive impairment but not severe dementia.  \nDiagnosis: **MCI (Mild Cognitive Impairment)**  \nConfidence: **High**",
  "timestamp": "2025-07-25T22:09:17.179642"
}