{
  "ptid_time": "053_S_2357_2011-11-02",
  "img_path": "/data/qiuhui/data/adni/images/053_S_2357/2011-11-02/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 41,858 mm³, 8.7% above the reference mean. With a Z-score of 0.21 (58.2th percentile), this represents normal volume ; hippocampal volume measures 7,662 mm³, 1.4% above the reference mean. With a Z-score of 0.13 (55.3th percentile), this represents normal volume ; whole brain volume measures 1,238,970 mm³, 14.8% above the reference mean. With a Z-score of 1.92 (97.3th percentile), this represents moderate enlargement; entorhinal cortex volume measures 4,137 mm³, 0.9% above the reference mean. With a Z-score of 0.06 (52.4th percentile), this represents normal volume ; fusiform gyrus volume measures 20,924 mm³, 11.1% above the reference mean. With a Z-score of 0.94 (82.7th percentile), this represents normal volume ; middle temporal gyrus volume measures 24,081 mm³, 12.9% above the reference mean. With a Z-score of 1.16 (87.6th percentile), this represents mild enlargement. ",
  "text_data": "Age is 72.1 years. Gender is Male. Education: 12 years. MMSE: 29.0. MoCA: 26.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (hippocampus, entorhinal cortex, fusiform gyrus, etc.) are within normal ranges or slightly enlarged, with no significant atrophy. Cognitive scores (MMSE 29, MoCA 26) are within normal limits for age, and the absence of APOE4 further reduces Alzheimer's risk.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T07:57:28.983252"
}