{
  "ptid_time": "131_S_0384_2008-01-15",
  "img_path": "/data/qiuhui/data/adni/images/131_S_0384/2008-01-15/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 33,822 mm³, 28.1% below the reference mean. With a Z-score of -0.82 (20.8th percentile), this represents normal volume ; hippocampal volume measures 6,619 mm³, 5.0% below the reference mean. With a Z-score of -0.43 (33.3th percentile), this represents normal volume ; whole brain volume measures 995,751 mm³, 3.2% below the reference mean. With a Z-score of -0.43 (33.5th percentile), this represents normal volume ; entorhinal cortex volume measures 3,957 mm³, 0.3% below the reference mean. With a Z-score of -0.02 (49.2th percentile), this represents normal volume ; fusiform gyrus volume measures 15,614 mm³, 13.6% below the reference mean. With a Z-score of -1.18 (12.0th percentile), this represents mild atrophy; middle temporal gyrus volume measures 18,640 mm³, 7.6% below the reference mean. With a Z-score of -0.68 (24.8th percentile), this represents normal volume . ",
  "text_data": "Age is 81.3 years. Gender is Male. Education: 14 years. MMSE: 29.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain volume measures are largely within normal ranges, with only mild atrophy noted in the fusiform gyrus. The MMSE score of 29 is within the normal range, and there is no APOE4 allele present, which reduces genetic risk for Alzheimer's.  \nDiagnosis: CN (Cognitively Normal)  \nConf",
  "timestamp": "2025-07-26T15:01:13.539298"
}