{
  "ptid_time": "141_S_0767_2008-10-02",
  "img_path": "/data/qiuhui/data/adni/images/141_S_0767/2008-10-02/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 22,178 mm³, 21.0% below the reference mean. With a Z-score of -0.48 (31.5th percentile), this represents normal volume ; hippocampal volume measures 6,182 mm³, 13.1% below the reference mean. With a Z-score of -1.20 (11.5th percentile), this represents mild atrophy; whole brain volume measures 920,687 mm³, 5.5% below the reference mean. With a Z-score of -0.70 (24.3th percentile), this represents normal volume ; entorhinal cortex volume measures 3,816 mm³, 3.9% above the reference mean. With a Z-score of 0.24 (59.4th percentile), this represents normal volume ; fusiform gyrus volume measures 17,838 mm³, 4.8% above the reference mean. With a Z-score of 0.44 (67.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,481 mm³, 8.8% below the reference mean. With a Z-score of -0.76 (22.2th percentile), this represents normal volume . ",
  "text_data": "Age is 75.0 years. Gender is Female. Education: 16 years. MMSE: 29.0. Logical Memory: 8.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The hippocampal volume shows mild atrophy (Z-score -1.20, 11.5th percentile), which is a potential early marker of cognitive decline, but all other brain volumes are within normal ranges. The MMSE score of 29 is within the normal range, and there is no APOE4 allele present, reducing genetic risk.  \nDiagnosis: MCI  \nConfidence: Medium",
  "timestamp": "2025-07-26T16:48:22.162320"
}