{
  "ptid_time": "021_S_2124_2011-05-03",
  "img_path": "/data/qiuhui/data/adni/images/021_S_2124/2011-05-03/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 35,618 mm³, 3.6% below the reference mean. With a Z-score of -0.10 (46.1th percentile), this represents normal volume ; hippocampal volume measures 7,131 mm³, 9.8% above the reference mean. With a Z-score of 0.78 (78.4th percentile), this represents normal volume ; whole brain volume measures 1,124,760 mm³, 21.2% above the reference mean. With a Z-score of 2.54 (99.4th percentile), this represents significant enlargement; entorhinal cortex volume measures 3,951 mm³, 14.1% above the reference mean. With a Z-score of 0.76 (77.7th percentile), this represents normal volume ; fusiform gyrus volume measures 22,350 mm³, 38.7% above the reference mean. With a Z-score of 2.91 (99.8th percentile), this represents significant enlargement; middle temporal gyrus volume measures 21,238 mm³, 17.8% above the reference mean. With a Z-score of 1.58 (94.3th percentile), this represents moderate enlargement. ",
  "text_data": "Age is 82.8 years. Gender is Female. Education: 15 years. MMSE: 26.0. MoCA: 28.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements show normal or above-normal volumes in all regions, including the hippocampus and entorhinal cortex, which are typically affected in Alzheimer's. Cognitive scores (MMSE 26, MoCA 28) are within normal limits for age, and the absence of APOE4 further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T01:39:03.930949"
}