{
  "ptid_time": "007_S_0068_2006-11-29",
  "img_path": "/data/qiuhui/data/adni/images/007_S_0068/2006-11-29/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 27,722 mm³, 1.2% below the reference mean. With a Z-score of -0.03 (48.9th percentile), this represents normal volume ; hippocampal volume measures 7,286 mm³, 2.4% above the reference mean. With a Z-score of 0.22 (58.7th percentile), this represents normal volume ; whole brain volume measures 940,835 mm³, 3.5% below the reference mean. With a Z-score of -0.44 (33.1th percentile), this represents normal volume ; entorhinal cortex volume measures 3,523 mm³, 4.1% below the reference mean. With a Z-score of -0.25 (40.1th percentile), this represents normal volume ; fusiform gyrus volume measures 14,441 mm³, 15.1% below the reference mean. With a Z-score of -1.38 (8.4th percentile), this represents mild atrophy; middle temporal gyrus volume measures 22,018 mm³, 14.9% above the reference mean. With a Z-score of 1.29 (90.1th percentile), this represents mild enlargement. ",
  "text_data": "Age is 75.4 years. Gender is Female. Education: 12 years. MMSE: 28.0. Logical Memory: 14.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements show mostly normal values, with only mild atrophy in the fusiform gyrus and mild enlargement in the middle temporal gyrus. The MMSE score of 28 is within the normal range, and the absence of APOE4 alleles reduces genetic risk.  \n\nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to isolated fusiform gyrus atrophy, but overall normal cognitive function and other structures)",
  "timestamp": "2025-07-25T21:44:03.998837"
}