{
  "ptid_time": "131_S_0384_2006-12-21",
  "img_path": "/data/qiuhui/data/adni/images/131_S_0384/2006-12-21/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 32,264 mm³, 31.4% below the reference mean. With a Z-score of -0.91 (18.1th percentile), this represents normal volume ; hippocampal volume measures 6,892 mm³, 1.1% below the reference mean. With a Z-score of -0.09 (46.2th percentile), this represents normal volume ; whole brain volume measures 1,038,150 mm³, 0.9% above the reference mean. With a Z-score of 0.11 (54.6th percentile), this represents normal volume ; entorhinal cortex volume measures 4,440 mm³, 11.9% above the reference mean. With a Z-score of 0.78 (78.1th percentile), this represents normal volume ; fusiform gyrus volume measures 15,604 mm³, 13.6% below the reference mean. With a Z-score of -1.18 (11.9th percentile), this represents mild atrophy; middle temporal gyrus volume measures 19,121 mm³, 5.2% below the reference mean. With a Z-score of -0.47 (32.0th percentile), this represents normal volume . ",
  "text_data": "Age is 80.3 years. Gender is Male. Education: 14 years. MMSE: 29.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements show mostly normal values, with only mild atrophy in the fusiform gyrus. The hippocampal volume, a key marker for Alzheimer's, is normal. The MMSE score of 29 is within the normal range, and the absence of APOE4 alleles reduces genetic risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T15:00:56.888677"
}