{
  "ptid_time": "941_S_1195_2013-03-07",
  "img_path": "/data/qiuhui/data/adni/images/941_S_1195/2013-03-07/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 45,691 mm³, 2.8% below the reference mean. With a Z-score of -0.08 (46.7th percentile), this represents normal volume ; hippocampal volume measures 6,170 mm³, 11.5% below the reference mean. With a Z-score of -0.99 (16.1th percentile), this represents normal volume ; whole brain volume measures 1,022,490 mm³, 0.6% below the reference mean. With a Z-score of -0.08 (46.6th percentile), this represents normal volume ; entorhinal cortex volume measures 4,105 mm³, 3.4% above the reference mean. With a Z-score of 0.22 (58.9th percentile), this represents normal volume ; fusiform gyrus volume measures 19,145 mm³, 6.0% above the reference mean. With a Z-score of 0.52 (69.7th percentile), this represents normal volume ; middle temporal gyrus volume measures 18,411 mm³, 8.7% below the reference mean. With a Z-score of -0.78 (21.7th percentile), this represents normal volume . ",
  "text_data": "Age is 82.9 years. Gender is Male. Education: 20 years. MMSE: 30.0. MoCA: 28.0. Logical Memory: 17.0. 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) fall within normal ranges based on Z-scores and percentiles. Cognitive testing (MMSE 30, MoCA 28) is intact, and there is no APOE4 genetic risk factor.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T17:27:00.210054"
}