{
  "ptid_time": "036_S_0576_2007-06-06",
  "img_path": "/data/qiuhui/data/adni/images/036_S_0576/2007-06-06/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 32,718 mm³, 15.1% below the reference mean. With a Z-score of -0.36 (35.9th percentile), this represents normal volume ; hippocampal volume measures 7,674 mm³, 1.5% above the reference mean. With a Z-score of 0.15 (55.9th percentile), this represents normal volume ; whole brain volume measures 1,124,680 mm³, 4.2% above the reference mean. With a Z-score of 0.54 (70.7th percentile), this represents normal volume ; entorhinal cortex volume measures 3,797 mm³, 7.4% below the reference mean. With a Z-score of -0.50 (30.8th percentile), this represents normal volume ; fusiform gyrus volume measures 20,912 mm³, 11.0% above the reference mean. With a Z-score of 0.94 (82.6th percentile), this represents normal volume ; middle temporal gyrus volume measures 23,144 mm³, 8.5% above the reference mean. With a Z-score of 0.76 (77.6th percentile), this represents normal volume . ",
  "text_data": "Age is 78.5 years. Gender is Male. Education: 14 years. MMSE: 29.0. Logical Memory: 11.0. 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. The MMSE score of 29 is within the normal range (≥26), and the absence of APOE4 further reduces Alzheimer's risk.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T06:01:18.207786"
}