{
  "ptid_time": "024_S_1063_2007-05-21",
  "img_path": "/data/qiuhui/data/adni/images/024_S_1063/2007-05-21/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 37,926 mm³, 35.1% above the reference mean. With a Z-score of 0.80 (78.9th percentile), this represents normal volume ; hippocampal volume measures 6,616 mm³, 7.0% below the reference mean. With a Z-score of -0.64 (26.0th percentile), this represents normal volume ; whole brain volume measures 941,290 mm³, 3.4% below the reference mean. With a Z-score of -0.43 (33.3th percentile), this represents normal volume ; entorhinal cortex volume measures 2,917 mm³, 20.6% below the reference mean. With a Z-score of -1.26 (10.3th percentile), this represents mild atrophy; fusiform gyrus volume measures 14,637 mm³, 14.0% below the reference mean. With a Z-score of -1.27 (10.2th percentile), this represents mild atrophy; middle temporal gyrus volume measures 17,688 mm³, 7.7% below the reference mean. With a Z-score of -0.67 (25.1th percentile), this represents normal volume . ",
  "text_data": "Age is 78.9 years. Gender is Female. Education: 19 years. MMSE: 29.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume analysis shows mild atrophy in the entorhinal cortex and fusiform gyrus, which are regions commonly affected in early Alzheimer's disease. However, hippocampal and whole brain volumes are within normal limits, and the MMSE score of 29 indicates intact cognitive function.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to mild atrophy in key regions but normal cognitive performance and other volumes)",
  "timestamp": "2025-07-26T03:12:56.323774"
}