{
  "ptid_time": "024_S_6472_2018-07-02",
  "img_path": "/data/qiuhui/data/adni/images/024_S_6472/2018-07-02/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 21,314 mm³, 4.6% below the reference mean. With a Z-score of -0.11 (45.4th percentile), this represents normal volume ; hippocampal volume measures 7,783 mm³, 1.3% above the reference mean. With a Z-score of 0.14 (55.7th percentile), this represents normal volume ; whole brain volume measures 989,249 mm³, 3.9% below the reference mean. With a Z-score of -0.48 (31.5th percentile), this represents normal volume ; entorhinal cortex volume measures 4,132 mm³, 6.1% above the reference mean. With a Z-score of 0.48 (68.3th percentile), this represents normal volume ; fusiform gyrus volume measures 18,689 mm³, 2.6% above the reference mean. With a Z-score of 0.30 (61.6th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,885 mm³, 6.7% above the reference mean. With a Z-score of 0.59 (72.3th percentile), this represents normal volume . ",
  "text_data": "Age is 67.6 years. Gender is Female. Education: 18 years. Handedness: Left. Race: White. MMSE: 30.0. MoCA: 28.0. Logical Memory: 20.0. APOEε4 alleles: 0.0. Biomarker levels: Flobetaben (FBB): 0.99 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volume measures (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) are within normal ranges, with Z-scores close to or above the mean. Cognitive scores (MMSE 30, MoCA 28) are also normal, and there is no APOE4 genetic risk factor.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T03:25:30.489738"
}