{
  "ptid_time": "021_S_5177_2015-06-11",
  "img_path": "/data/qiuhui/data/adni/images/021_S_5177/2015-06-11/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 26,073 mm³, 7.1% below the reference mean. With a Z-score of -0.16 (43.5th percentile), this represents normal volume ; hippocampal volume measures 7,776 mm³, 9.3% above the reference mean. With a Z-score of 0.85 (80.3th percentile), this represents normal volume ; whole brain volume measures 1,002,440 mm³, 2.9% above the reference mean. With a Z-score of 0.36 (64.0th percentile), this represents normal volume ; entorhinal cortex volume measures 3,836 mm³, 4.4% above the reference mean. With a Z-score of 0.27 (60.7th percentile), this represents normal volume ; fusiform gyrus volume measures 19,005 mm³, 11.7% above the reference mean. With a Z-score of 1.07 (85.7th percentile), this represents mild enlargement; middle temporal gyrus volume measures 19,700 mm³, 2.8% above the reference mean. With a Z-score of 0.24 (59.5th percentile), this represents normal volume . ",
  "text_data": "Age is 74.5 years. Gender is Female. Education: 18 years. MMSE: 30.0. MoCA: 26.0. Logical Memory: 18.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, middle temporal gyrus) are within normal ranges or mildly enlarged (fusiform gyrus). Cognitive screening scores (MMSE 30, MoCA 26) are normal for age, and there is no APOE4 genetic risk factor.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T01:53:51.450497"
}