{
  "ptid_time": "014_S_2185_2013-02-08",
  "img_path": "/data/qiuhui/data/adni/images/014_S_2185/2013-02-08/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 35,571 mm³, 7.6% below the reference mean. With a Z-score of -0.18 (42.7th percentile), this represents normal volume ; hippocampal volume measures 7,312 mm³, 3.3% below the reference mean. With a Z-score of -0.32 (37.5th percentile), this represents normal volume ; whole brain volume measures 1,199,240 mm³, 11.1% above the reference mean. With a Z-score of 1.44 (92.5th percentile), this represents mild enlargement; entorhinal cortex volume measures 4,951 mm³, 20.7% above the reference mean. With a Z-score of 1.41 (92.0th percentile), this represents mild enlargement; fusiform gyrus volume measures 19,281 mm³, 2.3% above the reference mean. With a Z-score of 0.20 (57.9th percentile), this represents normal volume ; middle temporal gyrus volume measures 23,949 mm³, 12.2% above the reference mean. With a Z-score of 1.10 (86.4th percentile), this represents mild enlargement. ",
  "text_data": "Age is 75.0 years. Gender is Male. Education: 17 years. MMSE: 30.0. MoCA: 27.0. Logical Memory: 8.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (including hippocampal and ventricular) are within normal ranges or mildly enlarged, with no significant atrophy. Cognitive scores (MMSE 30, MoCA 27) are normal for age, and the absence of APOE4 further reduces Alzheimer's risk.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-25T23:48:14.617540"
}