{
  "ptid_time": "003_S_6067_2017-08-18",
  "img_path": "/data/qiuhui/data/adni/images/003_S_6067/2017-08-18/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 18,482 mm³, 17.3% below the reference mean. With a Z-score of -0.43 (33.3th percentile), this represents normal volume ; hippocampal volume measures 8,323 mm³, 8.3% above the reference mean. With a Z-score of 0.93 (82.4th percentile), this represents normal volume ; whole brain volume measures 1,024,850 mm³, 0.4% below the reference mean. With a Z-score of -0.05 (47.9th percentile), this represents normal volume ; entorhinal cortex volume measures 5,161 mm³, 32.6% above the reference mean. With a Z-score of 2.52 (99.4th percentile), this represents significant enlargement; fusiform gyrus volume measures 17,293 mm³, 5.0% below the reference mean. With a Z-score of -0.57 (28.5th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,331 mm³, 0.9% below the reference mean. With a Z-score of -0.08 (46.7th percentile), this represents normal volume . ",
  "text_data": "Age is 63.1 years. Gender is Female. Education: 18 years. Handedness: Left. Race: White. MMSE: 29.0. MoCA: 29.0. Logical Memory: 17.0. 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, fusiform gyrus, middle temporal gyrus) are within normal ranges, with the entorhinal cortex showing significant enlargement (likely incidental or compensatory). Cognitive scores (MMSE, MoCA) are intact, APOE4 is negative, and amyloid PET (AV45) is normal.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-25T20:59:27.115946"
}