{
  "ptid_time": "073_S_0386_2007-01-04",
  "img_path": "/data/qiuhui/data/adni/images/073_S_0386/2007-01-04/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 19,309 mm³, 31.2% below the reference mean. With a Z-score of -0.71 (23.7th percentile), this represents normal volume ; hippocampal volume measures 7,497 mm³, 5.4% above the reference mean. With a Z-score of 0.49 (68.9th percentile), this represents normal volume ; whole brain volume measures 1,020,980 mm³, 4.8% above the reference mean. With a Z-score of 0.60 (72.5th percentile), this represents normal volume ; entorhinal cortex volume measures 3,555 mm³, 3.2% below the reference mean. With a Z-score of -0.20 (42.2th percentile), this represents normal volume ; fusiform gyrus volume measures 20,053 mm³, 17.9% above the reference mean. With a Z-score of 1.63 (94.8th percentile), this represents moderate enlargement; middle temporal gyrus volume measures 20,017 mm³, 4.4% above the reference mean. With a Z-score of 0.38 (64.9th percentile), this represents normal volume . ",
  "text_data": "Age is 72.8 years. Gender is Female. Education: 13 years. MMSE: 30.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, middle temporal gyrus) are within normal ranges or slightly above, with only the fusiform gyrus showing moderate enlargement. The MMSE score of 30 is optimal, and there are no significant structural deficits suggestive of neurodegeneration.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T09:30:24.325248"
}