{
  "ptid_time": "135_S_4598_2012-10-16",
  "img_path": "/data/qiuhui/data/adni/images/135_S_4598/2012-10-16/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 24,477 mm³, 9.6% above the reference mean. With a Z-score of 0.24 (59.5th percentile), this represents normal volume ; whole brain volume measures 1,101,620 mm³, 7.0% above the reference mean. With a Z-score of 0.88 (81.0th percentile), this represents normal volume ; entorhinal cortex volume measures 3,624 mm³, 6.9% below the reference mean. With a Z-score of -0.54 (29.6th percentile), this represents normal volume ; fusiform gyrus volume measures 20,447 mm³, 12.3% above the reference mean. With a Z-score of 1.38 (91.7th percentile), this represents mild enlargement; middle temporal gyrus volume measures 27,158 mm³, 32.4% above the reference mean. With a Z-score of 2.88 (99.8th percentile), this represents significant enlargement. ",
  "text_data": "Age is 65.6 years. Gender is Female. Education: 20 years. MMSE: 30.0. MoCA: 30.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume data shows normal or above-normal volumes in most regions, including the entorhinal cortex (Z-score -0.54, 29.6th percentile), which is within the normal range. The MMSE and MoCA scores are both perfect (30/30), and there is no APOE4 genetic risk factor. The mild enlargement in the fusiform gyrus and significant enlargement in the middle temporal gyrus are atypical but not indicative of neurodegeneration.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T15:38:46.702255"
}