{
  "ptid_time": "068_S_0802_2007-05-04",
  "img_path": "/data/qiuhui/data/adni/images/068_S_0802/2007-05-04/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 26,504 mm³, 28.3% below the reference mean. With a Z-score of -0.76 (22.2th percentile), this represents normal volume ; hippocampal volume measures 6,929 mm³, 6.7% above the reference mean. With a Z-score of 0.54 (70.4th percentile), this represents normal volume ; whole brain volume measures 983,288 mm³, 5.9% above the reference mean. With a Z-score of 0.71 (76.2th percentile), this represents normal volume ; entorhinal cortex volume measures 4,035 mm³, 16.5% above the reference mean. With a Z-score of 0.89 (81.4th percentile), this represents normal volume ; fusiform gyrus volume measures 16,964 mm³, 5.3% above the reference mean. With a Z-score of 0.40 (65.5th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,916 mm³, 10.5% above the reference mean. With a Z-score of 0.93 (82.4th percentile), this represents normal volume . ",
  "text_data": "Age is 81.4 years. Gender is Female. Education: 8 years. MMSE: 30.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: All brain volume measures (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) are within normal ranges, with Z-scores and percentiles indicating no significant atrophy. The MMSE score of 30/30 is intact, and the absence of APOE4 further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T08:50:52.204449"
}