{
  "ptid_time": "052_S_0951_2010-02-05",
  "img_path": "/data/qiuhui/data/adni/images/052_S_0951/2010-02-05/t1.nii.gz",
  "img_finding": "Image findings: hippocampal volume measures 7,423 mm³, 6.5% above the reference mean. With a Z-score of 0.56 (71.4th percentile), this represents normal volume ; whole brain volume measures 1,037,980 mm³, 0.9% above the reference mean. With a Z-score of 0.11 (54.5th percentile), this represents normal volume ; entorhinal cortex volume measures 5,331 mm³, 34.3% above the reference mean. With a Z-score of 2.25 (98.8th percentile), this represents significant enlargement; fusiform gyrus volume measures 19,562 mm³, 8.3% above the reference mean. With a Z-score of 0.72 (76.3th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,847 mm³, 11.5% below the reference mean. With a Z-score of -1.03 (15.1th percentile), this represents mild atrophy. ",
  "text_data": "Age is 87.8 years. Gender is Male. Education: 18 years. MMSE: 30.0. Logical Memory: 10.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The hippocampal, whole brain, and fusiform gyrus volumes are within normal ranges, while the entorhinal cortex shows significant enlargement (likely compensatory or atypical). The mild atrophy in the middle temporal gyrus is notable but not severe. The MMSE score of 30/30 indicates intact cognitive function, and the absence of APOE4 reduces genetic risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to mild temporal atrophy in an otherwise normal profile, but strong clinical cognitive performance)",
  "timestamp": "2025-07-26T07:40:47.460730"
}