{
  "ptid_time": "068_S_0802_2008-12-18",
  "img_path": "/data/qiuhui/data/adni/images/068_S_0802/2008-12-18/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 27,195 mm³, 26.4% below the reference mean. With a Z-score of -0.71 (23.8th percentile), this represents normal volume ; hippocampal volume measures 6,871 mm³, 5.8% above the reference mean. With a Z-score of 0.46 (67.9th percentile), this represents normal volume ; whole brain volume measures 994,406 mm³, 7.1% above the reference mean. With a Z-score of 0.86 (80.4th percentile), this represents normal volume ; entorhinal cortex volume measures 3,854 mm³, 11.3% above the reference mean. With a Z-score of 0.61 (72.9th percentile), this represents normal volume ; fusiform gyrus volume measures 17,287 mm³, 7.3% above the reference mean. With a Z-score of 0.55 (70.9th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,810 mm³, 9.9% above the reference mean. With a Z-score of 0.88 (81.0th percentile), this represents normal volume . ",
  "text_data": "Age is 82.9 years. Gender is Female. Education: 8 years. MMSE: 29.0. Logical Memory: 6.0. 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 29/30 is also within the normal range, and the absence of APOE4 alleles further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T08:51:02.554171"
}