{
  "ptid_time": "005_S_0553_2007-08-02",
  "img_path": "/data/qiuhui/data/adni/images/005_S_0553/2007-08-02/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 36,684 mm³, 22.0% below the reference mean. With a Z-score of -0.64 (26.2th percentile), this represents normal volume ; hippocampal volume measures 8,002 mm³, 14.8% above the reference mean. With a Z-score of 1.28 (90.0th percentile), this represents mild enlargement; whole brain volume measures 1,022,320 mm³, 0.7% below the reference mean. With a Z-score of -0.09 (46.5th percentile), this represents normal volume ; entorhinal cortex volume measures 3,946 mm³, 0.6% below the reference mean. With a Z-score of -0.04 (48.5th percentile), this represents normal volume ; fusiform gyrus volume measures 15,770 mm³, 12.7% below the reference mean. With a Z-score of -1.10 (13.6th percentile), this represents mild atrophy; middle temporal gyrus volume measures 21,088 mm³, 4.5% above the reference mean. With a Z-score of 0.41 (65.8th percentile), this represents normal volume . ",
  "text_data": "Age is 85.6 years. Gender is Male. Education: 18 years. MMSE: 30.0. Logical Memory: 21.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume measures show mostly normal volumes, with mild fusiform gyrus atrophy but no significant hippocampal or entorhinal cortex atrophy. The MMSE score of 30 is within the normal range, and the absence of APOE4 alleles further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-25T21:09:41.808758"
}