{
  "ptid_time": "057_S_5292_2019-09-19",
  "img_path": "/data/qiuhui/data/adni/images/057_S_5292/2019-09-19/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 27,225 mm³, 26.3% below the reference mean. With a Z-score of -0.71 (23.8th percentile), this represents normal volume ; hippocampal volume measures 6,677 mm³, 2.8% above the reference mean. With a Z-score of 0.22 (58.9th percentile), this represents normal volume ; whole brain volume measures 921,575 mm³, 0.7% below the reference mean. With a Z-score of -0.09 (46.6th percentile), this represents normal volume ; entorhinal cortex volume measures 4,059 mm³, 17.2% above the reference mean. With a Z-score of 0.93 (82.4th percentile), this represents normal volume ; fusiform gyrus volume measures 14,861 mm³, 7.8% below the reference mean. With a Z-score of -0.58 (28.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 16,781 mm³, 6.9% below the reference mean. With a Z-score of -0.62 (26.9th percentile), this represents normal volume . ",
  "text_data": "Age is 80.3 years. Gender is Female. Education: 13 years. MMSE: 30.0. MoCA: 28.0. Logical Memory: 20.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** All brain volume measures (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) fall within normal ranges based on Z-scores and percentiles. Cognitive assessments (MMSE 30, MoCA 28) are also within normal limits, and there is no APOE4 genetic risk factor.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T08:15:32.872225"
}