{
  "ptid_time": "131_S_0384_2010-06-29",
  "img_path": "/data/qiuhui/data/adni/images/131_S_0384/2010-06-29/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 37,483 mm³, 20.3% below the reference mean. With a Z-score of -0.59 (27.8th percentile), this represents normal volume ; hippocampal volume measures 6,257 mm³, 10.2% below the reference mean. With a Z-score of -0.88 (18.9th percentile), this represents normal volume ; whole brain volume measures 986,792 mm³, 4.1% below the reference mean. With a Z-score of -0.54 (29.5th percentile), this represents normal volume ; entorhinal cortex volume measures 3,170 mm³, 20.1% below the reference mean. With a Z-score of -1.32 (9.4th percentile), this represents mild atrophy; fusiform gyrus volume measures 14,981 mm³, 17.1% below the reference mean. With a Z-score of -1.48 (7.0th percentile), this represents mild atrophy; middle temporal gyrus volume measures 16,782 mm³, 16.8% below the reference mean. With a Z-score of -1.51 (6.6th percentile), this represents moderate atrophy. ",
  "text_data": "Age is 83.8 years. Gender is Male. Education: 14 years. MMSE: 29.0. Logical Memory: 10.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume measures show mild to moderate atrophy in the entorhinal cortex, fusiform gyrus, and middle temporal gyrus, which are often affected in early Alzheimer's disease. However, the MMSE score of 29 is within the normal range, and there is no APOE4 allele present, which reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium",
  "timestamp": "2025-07-26T15:02:16.934756"
}