{
  "ptid_time": "011_S_4075_2012-06-22",
  "img_path": "/data/qiuhui/data/adni/images/011_S_4075/2012-06-22/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 30,682 mm³, 20.3% below the reference mean. With a Z-score of -0.49 (31.3th percentile), this represents normal volume ; hippocampal volume measures 7,094 mm³, 6.2% below the reference mean. With a Z-score of -0.60 (27.4th percentile), this represents normal volume ; whole brain volume measures 1,098,960 mm³, 1.8% above the reference mean. With a Z-score of 0.24 (59.3th percentile), this represents normal volume ; entorhinal cortex volume measures 4,958 mm³, 20.9% above the reference mean. With a Z-score of 1.42 (92.2th percentile), this represents mild enlargement; fusiform gyrus volume measures 19,424 mm³, 3.1% above the reference mean. With a Z-score of 0.26 (60.4th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,823 mm³, 2.4% below the reference mean. With a Z-score of -0.22 (41.4th percentile), this represents normal volume . ",
  "text_data": "Age is 74.4 years. Gender is Male. Education: 16 years. MMSE: 30.0. MoCA: 26.0. Logical Memory: 11.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume measures are largely within normal ranges, with only mild enlargement noted in the entorhinal cortex. Cognitive scores (MMSE 30, MoCA 26) are within normal limits for age, and there is no significant atrophy in Alzheimer’s-sensitive regions like the hippocampus.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-25T22:53:03.462603"
}