{
  "ptid_time": "007_S_6455_2018-06-19",
  "img_path": "/data/qiuhui/data/adni/images/007_S_6455/2018-06-19/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 33,067 mm³, 48.0% above the reference mean. With a Z-score of 1.20 (88.5th percentile), this represents mild enlargement; hippocampal volume measures 8,447 mm³, 9.9% above the reference mean. With a Z-score of 1.11 (86.7th percentile), this represents mild enlargement; whole brain volume measures 1,154,740 mm³, 12.2% above the reference mean. With a Z-score of 1.52 (93.6th percentile), this represents moderate enlargement; entorhinal cortex volume measures 3,810 mm³, 2.1% below the reference mean. With a Z-score of -0.17 (43.4th percentile), this represents normal volume ; fusiform gyrus volume measures 19,464 mm³, 6.9% above the reference mean. With a Z-score of 0.78 (78.1th percentile), this represents normal volume ; middle temporal gyrus volume measures 23,367 mm³, 13.9% above the reference mean. With a Z-score of 1.23 (89.1th percentile), this represents mild enlargement. ",
  "text_data": "Age is 68.0 years. Gender is Female. Education: 18 years. Handedness: Right. Race: White. MMSE: 28.0. MoCA: 30.0. Logical Memory: 7.0. APOEε4 alleles: 1.0. Biomarker levels: Flobetaben (FBB): 1.00 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume data shows mild to moderate enlargement in most regions, with only the entorhinal cortex slightly below the reference mean. Cognitive scores (MMSE 28, MoCA 30) are within normal ranges, and the APOE4 heterozygous status is a moderate risk factor but not definitive for Alzheimer's.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to normal cognitive scores despite some volumetric changes and APOE4 presence)",
  "timestamp": "2025-07-25T22:09:57.036346"
}