{
  "ptid_time": "003_S_6260_2019-07-09",
  "img_path": "/data/qiuhui/data/adni/images/003_S_6260/2019-07-09/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 28,571 mm³, 25.8% below the reference mean. With a Z-score of -0.62 (26.8th percentile), this represents normal volume ; hippocampal volume measures 7,974 mm³, 5.5% above the reference mean. With a Z-score of 0.54 (70.4th percentile), this represents normal volume ; whole brain volume measures 1,113,210 mm³, 3.1% above the reference mean. With a Z-score of 0.41 (65.8th percentile), this represents normal volume ; entorhinal cortex volume measures 3,842 mm³, 6.3% below the reference mean. With a Z-score of -0.43 (33.4th percentile), this represents normal volume ; fusiform gyrus volume measures 19,300 mm³, 2.5% above the reference mean. With a Z-score of 0.21 (58.3th percentile), this represents normal volume ; middle temporal gyrus volume measures 24,565 mm³, 15.1% above the reference mean. With a Z-score of 1.36 (91.3th percentile), this represents mild enlargement. ",
  "text_data": "Age is 70.0 years. Gender is Male. Education: 20 years. MMSE: 26.0. MoCA: 26.0. Logical Memory: 22.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus) are within normal ranges, with only the middle temporal gyrus showing mild enlargement. Cognitive scores (MMSE: 26, MoCA: 26) are borderline but still within normal limits for age, and APOE4-negative status reduces genetic risk. No significant atrophy or biomarker abnormalities are present.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-25T21:00:38.879451"
}