{
  "ptid_time": "007_S_6310_2018-04-09",
  "img_path": "/data/qiuhui/data/adni/images/007_S_6310/2018-04-09/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 11,785 mm³, 47.2% below the reference mean. With a Z-score of -1.18 (11.9th percentile), this represents mild atrophy; hippocampal volume measures 8,247 mm³, 7.3% above the reference mean. With a Z-score of 0.82 (79.4th percentile), this represents normal volume ; whole brain volume measures 989,646 mm³, 3.8% below the reference mean. With a Z-score of -0.48 (31.6th percentile), this represents normal volume ; entorhinal cortex volume measures 4,480 mm³, 15.1% above the reference mean. With a Z-score of 1.17 (87.9th percentile), this represents mild enlargement; fusiform gyrus volume measures 15,569 mm³, 14.5% below the reference mean. With a Z-score of -1.63 (5.1th percentile), this represents moderate atrophy; middle temporal gyrus volume measures 18,811 mm³, 8.3% below the reference mean. With a Z-score of -0.74 (23.0th percentile), this represents normal volume . ",
  "text_data": "Age is 67.2 years. Gender is Female. Education: 16 years. Handedness: Left. Race: White. MMSE: 28.0. MoCA: 26.0. Logical Memory: 13.0. APOEε4 alleles: 1.0. Biomarker levels: Flobetaben (FBB): 1.06 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain imaging shows mild ventricular atrophy and moderate fusiform gyrus atrophy, but hippocampal and entorhinal cortex volumes are normal or even enlarged. Cognitive scores (MMSE 28, MoCA 26) are within normal ranges, and APOE4 status (heterozygous) does not strongly indicate high risk. The atrophy patterns are not typical of Alzheimer's progression.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to mixed atrophy findings but preserved cognition and atypical Alzheimer's atrophy pattern)",
  "timestamp": "2025-07-25T22:08:37.356481"
}