{
  "ptid_time": "073_S_4540_2012-05-10",
  "img_path": "/data/qiuhui/data/adni/images/073_S_4540/2012-05-10/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 16,360 mm³, 41.7% below the reference mean. With a Z-score of -0.96 (17.0th percentile), this represents normal volume ; hippocampal volume measures 6,592 mm³, 7.3% below the reference mean. With a Z-score of -0.67 (25.0th percentile), this represents normal volume ; whole brain volume measures 999,230 mm³, 2.5% above the reference mean. With a Z-score of 0.32 (62.5th percentile), this represents normal volume ; entorhinal cortex volume measures 3,834 mm³, 4.4% above the reference mean. With a Z-score of 0.27 (60.6th percentile), this represents normal volume ; fusiform gyrus volume measures 19,251 mm³, 13.2% above the reference mean. With a Z-score of 1.20 (88.4th percentile), this represents mild enlargement; middle temporal gyrus volume measures 18,317 mm³, 4.4% below the reference mean. With a Z-score of -0.39 (35.0th percentile), this represents normal volume . ",
  "text_data": "Age is 71.1 years. Gender is Female. Education: 16 years. Handedness: Right. Race: White. Medical history: Head, Eyes, Ears, Nose and Throat; Cardiovascular; Dermatologic-Connective Tissue; Alcohol Abuse; Smoking; Malignancy; Major Surgical Procedures. MMSE: 29.0. MoCA: 25.0. Logical Memory: 11.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.03 SUVR (normal ); Total tau: 194.80 pg/mL (normal ); Phosphorylated tau: 18.67 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "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 29, MoCA 25) are normal or borderline normal, and biomarkers (T-tau, P-tau, AV45) are unremarkable. No significant atrophy or biomarker evidence of Alzheimer’s pathology is present.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T09:48:35.803801"
}