{
  "ptid_time": "037_S_0377_2016-06-08",
  "img_path": "/data/qiuhui/data/adni/images/037_S_0377/2016-06-08/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 43,689 mm³, 7.1% below the reference mean. With a Z-score of -0.21 (41.9th percentile), this represents normal volume ; hippocampal volume measures 6,482 mm³, 7.0% below the reference mean. With a Z-score of -0.60 (27.3th percentile), this represents normal volume ; whole brain volume measures 1,084,930 mm³, 5.4% above the reference mean. With a Z-score of 0.71 (76.1th percentile), this represents normal volume ; entorhinal cortex volume measures 4,391 mm³, 10.6% above the reference mean. With a Z-score of 0.70 (75.7th percentile), this represents normal volume ; fusiform gyrus volume measures 16,593 mm³, 8.2% below the reference mean. With a Z-score of -0.71 (24.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,454 mm³, 3.6% below the reference mean. With a Z-score of -0.32 (37.5th percentile), this represents normal volume . ",
  "text_data": "Age is 89.3 years. Gender is Male. Education: 16 years. MMSE: 28.0. MoCA: 24.0. Logical Memory: 7.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) fall within normal ranges based on Z-scores and percentiles. Cognitive screening scores (MMSE 28, MoCA 24) are within normal limits for age, though MoCA is borderline for possible mild cognitive impairment (MCI). APOE4 carrier status increases Alzheimer's risk but does not confirm pathology.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** Medium (due to borderline MoCA and APOE4 status, but normal imaging and high MMSE suggest no significant impairment)",
  "timestamp": "2025-07-26T06:27:46.686403"
}