{
  "ptid_time": "041_S_1260_2008-09-24",
  "img_path": "/data/qiuhui/data/adni/images/041_S_1260/2008-09-24/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 27,772 mm³, 27.9% below the reference mean. With a Z-score of -0.67 (25.2th percentile), this represents normal volume ; hippocampal volume measures 7,420 mm³, 1.8% below the reference mean. With a Z-score of -0.18 (42.9th percentile), this represents normal volume ; whole brain volume measures 1,021,890 mm³, 5.3% below the reference mean. With a Z-score of -0.69 (24.5th percentile), this represents normal volume ; entorhinal cortex volume measures 4,172 mm³, 1.7% above the reference mean. With a Z-score of 0.12 (54.7th percentile), this represents normal volume ; fusiform gyrus volume measures 17,680 mm³, 6.1% below the reference mean. With a Z-score of -0.52 (30.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 18,214 mm³, 14.6% below the reference mean. With a Z-score of -1.32 (9.4th percentile), this represents mild atrophy. ",
  "text_data": "Age is 72.7 years. Gender is Male. Education: 16 years. MMSE: 27.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements show mostly normal values, with only mild atrophy in the middle temporal gyrus. The MMSE score of 27 is within the normal range, and the absence of APOE4 alleles reduces genetic risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to mild atrophy in the middle temporal gyrus, but no significant cognitive impairment)",
  "timestamp": "2025-07-26T07:04:19.073326"
}