{
  "ptid_time": "021_S_4276_2012-10-22",
  "img_path": "/data/qiuhui/data/adni/images/021_S_4276/2012-10-22/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 25,073 mm³, 10.7% below the reference mean. With a Z-score of -0.24 (40.3th percentile), this represents normal volume ; hippocampal volume measures 7,230 mm³, 1.6% above the reference mean. With a Z-score of 0.15 (55.9th percentile), this represents normal volume ; whole brain volume measures 1,039,400 mm³, 6.6% above the reference mean. With a Z-score of 0.84 (79.8th percentile), this represents normal volume ; entorhinal cortex volume measures 3,722 mm³, 1.3% above the reference mean. With a Z-score of 0.08 (53.3th percentile), this represents normal volume ; fusiform gyrus volume measures 19,525 mm³, 14.8% above the reference mean. With a Z-score of 1.34 (91.0th percentile), this represents mild enlargement; middle temporal gyrus volume measures 18,818 mm³, 1.8% below the reference mean. With a Z-score of -0.16 (43.7th percentile), this represents normal volume . ",
  "text_data": "Age is 74.9 years. Gender is Female. Education: 12 years. MMSE: 30.0. MoCA: 27.0. Logical Memory: 13.0. 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 mildly enlarged (fusiform gyrus). Cognitive scores (MMSE 30, MoCA 27) are normal for age, and there is no significant atrophy or biomarker evidence of neurodegeneration.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T01:43:25.626629"
}