{
  "ptid_time": "116_S_4010_2011-10-17",
  "img_path": "/data/qiuhui/data/adni/images/116_S_4010/2011-10-17/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 33,387 mm³, 19.0% above the reference mean. With a Z-score of 0.43 (66.8th percentile), this represents normal volume ; whole brain volume measures 901,307 mm³, 7.5% below the reference mean. With a Z-score of -0.95 (17.2th percentile), this represents normal volume ; entorhinal cortex volume measures 3,875 mm³, 5.5% above the reference mean. With a Z-score of 0.34 (63.2th percentile), this represents normal volume ; fusiform gyrus volume measures 18,384 mm³, 8.1% above the reference mean. With a Z-score of 0.73 (76.8th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,745 mm³, 7.4% below the reference mean. With a Z-score of -0.65 (25.9th percentile), this represents normal volume . ",
  "text_data": "Age is 71.3 years. Gender is Female. Education: 18 years. MMSE: 28.0. MoCA: 25.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements (ventricular, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) all fall within normal ranges based on Z-scores and percentiles. Cognitive testing (MMSE: 28, MoCA: 25) is within normal limits for age, and the absence of APOE4 further reduces Alzheimer's risk.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T12:05:50.018720"
}