{
  "ptid_time": "127_S_0397_2006-12-07",
  "img_path": "/data/qiuhui/data/adni/images/127_S_0397/2006-12-07/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 25,358 mm³, 34.2% below the reference mean. With a Z-score of -0.82 (20.7th percentile), this represents normal volume ; hippocampal volume measures 7,117 mm³, 5.8% below the reference mean. With a Z-score of -0.57 (28.4th percentile), this represents normal volume ; whole brain volume measures 1,101,960 mm³, 2.1% above the reference mean. With a Z-score of 0.27 (60.7th percentile), this represents normal volume ; entorhinal cortex volume measures 3,874 mm³, 5.5% below the reference mean. With a Z-score of -0.37 (35.4th percentile), this represents normal volume ; fusiform gyrus volume measures 16,117 mm³, 14.4% below the reference mean. With a Z-score of -1.23 (10.9th percentile), this represents mild atrophy; middle temporal gyrus volume measures 22,270 mm³, 4.4% above the reference mean. With a Z-score of 0.39 (65.3th percentile), this represents normal volume . ",
  "text_data": "Age is 75.1 years. Gender is Male. Education: 14 years. MMSE: 24.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements show mostly normal values, with only mild atrophy in the fusiform gyrus. The MMSE score of 24 is slightly below the normal range (typically 26-30), suggesting possible mild cognitive impairment, but not severe enough for dementia. The presence of one APOE4 allele increases Alzheimer's risk but does not confirm it.  \n\nDiagnosis: MCI (Mild Cognitive Impairment)  \nConfidence: Medium",
  "timestamp": "2025-07-26T13:00:39.862399"
}