{
  "ptid_time": "099_S_2146_2011-11-16",
  "img_path": "/data/qiuhui/data/adni/images/099_S_2146/2011-11-16/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 25,878 mm³, 13.8% below the reference mean. With a Z-score of -0.33 (37.1th percentile), this represents normal volume ; whole brain volume measures 1,157,040 mm³, 2.0% above the reference mean. With a Z-score of 0.28 (61.1th percentile), this represents normal volume ; entorhinal cortex volume measures 4,116 mm³, 3.4% below the reference mean. With a Z-score of -0.24 (40.6th percentile), this represents normal volume ; fusiform gyrus volume measures 20,602 mm³, 3.5% above the reference mean. With a Z-score of 0.29 (61.4th percentile), this represents normal volume ; middle temporal gyrus volume measures 24,398 mm³, 8.9% above the reference mean. With a Z-score of 0.73 (76.7th percentile), this represents normal volume . ",
  "text_data": "Age is 67.3 years. Gender is Male. Education: 18 years. MMSE: 27.0. MoCA: 28.0. Logical Memory: 11.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volume measures (ventricular, whole brain, entorhinal cortex, fusiform gyrus, middle temporal gyrus) fall within normal ranges (Z-scores close to 0, percentiles near 50th). Cognitive scores (MMSE 27, MoCA 28) are within normal limits, and the absence of APOE4 further reduces Alzheimer's risk.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T11:02:51.532698"
}