{
  "ptid_time": "024_S_6202_2018-02-13",
  "img_path": "/data/qiuhui/data/adni/images/024_S_6202/2018-02-13/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 19,118 mm³, 14.4% below the reference mean. With a Z-score of -0.36 (35.9th percentile), this represents normal volume ; hippocampal volume measures 8,055 mm³, 4.8% above the reference mean. With a Z-score of 0.54 (70.6th percentile), this represents normal volume ; whole brain volume measures 1,031,020 mm³, 0.2% above the reference mean. With a Z-score of 0.02 (50.9th percentile), this represents normal volume ; entorhinal cortex volume measures 5,024 mm³, 29.1% above the reference mean. With a Z-score of 2.25 (98.8th percentile), this represents significant enlargement; fusiform gyrus volume measures 18,934 mm³, 4.0% above the reference mean. With a Z-score of 0.45 (67.3th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,537 mm³, 4.8% below the reference mean. With a Z-score of -0.43 (33.5th percentile), this represents normal volume . ",
  "text_data": "Age is 69.6 years. Gender is Female. Education: 20 years. Handedness: Right. Race: White. MMSE: 30.0. MoCA: 27.0. Logical Memory: 15.0. APOEε4 alleles: 0.0. Biomarker levels: Flobetaben (FBB): 0.99 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements are largely within normal ranges, with the exception of the entorhinal cortex, which shows significant enlargement (Z-score 2.25, 98.8th percentile). Cognitive scores (MMSE 30, MoCA 27) are normal for age, and there is no APOE4 risk allele. No significant atrophy is present in key Alzheimer’s-related regions (hippocampus, whole brain).  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T03:24:50.604823"
}