{
  "ptid_time": "011_S_0005_2006-03-09",
  "img_path": "/data/qiuhui/data/adni/images/011_S_0005/2006-03-09/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 34,119 mm³, 11.4% below the reference mean. With a Z-score of -0.27 (39.2th percentile), this represents normal volume ; hippocampal volume measures 6,940 mm³, 8.2% below the reference mean. With a Z-score of -0.80 (21.2th percentile), this represents normal volume ; whole brain volume measures 1,111,090 mm³, 2.9% above the reference mean. With a Z-score of 0.38 (64.8th percentile), this represents normal volume ; entorhinal cortex volume measures 3,549 mm³, 13.5% below the reference mean. With a Z-score of -0.91 (18.1th percentile), this represents normal volume ; fusiform gyrus volume measures 23,496 mm³, 24.7% above the reference mean. With a Z-score of 2.11 (98.2th percentile), this represents significant enlargement; middle temporal gyrus volume measures 21,386 mm³, 0.2% above the reference mean. With a Z-score of 0.02 (50.8th percentile), this represents normal volume . ",
  "text_data": "Age is 74.2 years. Gender is Male. Education: 16 years. MMSE: 29.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements are largely within normal ranges, with only the fusiform gyrus showing significant enlargement (Z-score 2.11). Hippocampal and entorhinal cortex volumes are slightly reduced but still within normal limits. The MMSE score of 29 is normal, and the absence of APOE4 alleles reduces genetic risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-25T22:37:13.302248"
}