{
  "ptid_time": "041_S_4874_2013-03-06",
  "img_path": "/data/qiuhui/data/adni/images/041_S_4874/2013-03-06/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 15,256 mm³, 18.1% below the reference mean. With a Z-score of -0.52 (30.2th percentile), this represents normal volume ; hippocampal volume measures 7,886 mm³, 1.0% above the reference mean. With a Z-score of 0.14 (55.5th percentile), this represents normal volume ; whole brain volume measures 1,052,600 mm³, 1.2% above the reference mean. With a Z-score of 0.14 (55.5th percentile), this represents normal volume ; entorhinal cortex volume measures 4,182 mm³, 13.2% above the reference mean. With a Z-score of 1.03 (84.9th percentile), this represents mild enlargement; fusiform gyrus volume measures 18,337 mm³, 0.5% below the reference mean. With a Z-score of -0.05 (48.1th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,379 mm³, 0.7% below the reference mean. With a Z-score of -0.06 (47.5th percentile), this represents normal volume . ",
  "text_data": "Age is 58.2 years. Gender is Female. Education: 18 years. MMSE: 29.0. MoCA: 29.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: All brain volumes (hippocampal, whole brain, fusiform gyrus, middle temporal gyrus) are within normal ranges or mildly enlarged (entorhinal cortex). Cognitive scores (MMSE, MoCA) are intact (29/30), and there are no significant structural deficits suggestive of neurodegeneration.  \nDiagnosis: **CN (Cognitively Normal)**  \nConfidence: **High**",
  "timestamp": "2025-07-26T07:20:15.865829"
}