{
  "ptid_time": "094_S_2201_2017-10-06",
  "img_path": "/data/qiuhui/data/adni/images/094_S_2201/2017-10-06/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 34,776 mm³, 23.9% above the reference mean. With a Z-score of 0.55 (70.8th percentile), this represents normal volume ; hippocampal volume measures 7,289 mm³, 2.4% above the reference mean. With a Z-score of 0.22 (58.9th percentile), this represents normal volume ; whole brain volume measures 986,680 mm³, 1.2% above the reference mean. With a Z-score of 0.16 (56.2th percentile), this represents normal volume ; entorhinal cortex volume measures 4,086 mm³, 11.2% above the reference mean. With a Z-score of 0.69 (75.5th percentile), this represents normal volume ; fusiform gyrus volume measures 19,442 mm³, 14.3% above the reference mean. With a Z-score of 1.30 (90.3th percentile), this represents mild enlargement; middle temporal gyrus volume measures 19,026 mm³, 0.7% below the reference mean. With a Z-score of -0.06 (47.4th percentile), this represents normal volume . ",
  "text_data": "Age is 70.2 years. Gender is Female. Education: 18 years. MMSE: 30.0. MoCA: 26.0. Logical Memory: 15.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.00 SUVR (normal ). ",
  "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: 26) are normal, and amyloid PET (AV45) is negative. No significant atrophy or biomarker evidence of Alzheimer's pathology.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T10:25:37.012481"
}