{
  "ptid_time": "037_S_6204_2019-07-25",
  "img_path": "/data/qiuhui/data/adni/images/037_S_6204/2019-07-25/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 26,077 mm³, 13.2% below the reference mean. With a Z-score of -0.31 (37.7th percentile), this represents normal volume ; hippocampal volume measures 8,606 mm³, 7.2% above the reference mean. With a Z-score of 0.72 (76.5th percentile), this represents normal volume ; whole brain volume measures 1,128,280 mm³, 0.6% below the reference mean. With a Z-score of -0.08 (46.9th percentile), this represents normal volume ; entorhinal cortex volume measures 4,894 mm³, 14.8% above the reference mean. With a Z-score of 1.02 (84.7th percentile), this represents mild enlargement; fusiform gyrus volume measures 20,821 mm³, 4.6% above the reference mean. With a Z-score of 0.38 (64.8th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,549 mm³, 3.8% below the reference mean. With a Z-score of -0.32 (37.6th percentile), this represents normal volume . ",
  "text_data": "Age is 66.3 years. Gender is Male. Education: 20 years. MMSE: 29.0. MoCA: 28.0. Logical Memory: 16.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) are within normal ranges or show mild enlargement, with no significant atrophy. Cognitive scores (MMSE 29, MoCA 28) are well within normal limits, and the absence of APOE4 further reduces Alzheimer's risk.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T06:54:16.624415"
}