{
  "ptid_time": "033_S_6572_2018-09-04",
  "img_path": "/data/qiuhui/data/adni/images/033_S_6572/2018-09-04/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 24,372 mm³, 9.1% above the reference mean. With a Z-score of 0.23 (59.0th percentile), this represents normal volume ; hippocampal volume measures 8,699 mm³, 13.2% above the reference mean. With a Z-score of 1.48 (93.1th percentile), this represents mild enlargement; whole brain volume measures 1,114,680 mm³, 8.3% above the reference mean. With a Z-score of 1.03 (85.0th percentile), this represents mild enlargement; entorhinal cortex volume measures 5,951 mm³, 52.9% above the reference mean. With a Z-score of 4.10 (100.0th percentile), this represents profound enlargement; fusiform gyrus volume measures 18,409 mm³, 1.1% above the reference mean. With a Z-score of 0.12 (54.9th percentile), this represents normal volume ; middle temporal gyrus volume measures 18,065 mm³, 12.0% below the reference mean. With a Z-score of -1.06 (14.4th percentile), this represents mild atrophy. ",
  "text_data": "Age is 67.9 years. Gender is Female. Education: 13 years. Handedness: Left. Race: White. MMSE: 29.0. MoCA: 27.0. Logical Memory: 14.0. APOEε4 alleles: 0.0. Biomarker levels: Flobetaben (FBB): 1.56 SUVR (profound elevated). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain volume data shows mixed findings—mild atrophy in the middle temporal gyrus but otherwise normal or enlarged volumes in other regions (e.g., profound enlargement in the entorhinal cortex). Cognitive scores (MMSE 29, MoCA 27) are within normal limits, and there is no APOE4 risk allele. The atrophy in the middle temporal gyrus is concerning but not strongly indicative of neurodegeneration given the otherwise preserved volumes and normal cognition.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** Medium (due to the isolated middle temporal gyrus atrophy, but normal cognitive performance and lack of other significant atrophy)",
  "timestamp": "2025-07-26T05:40:54.591614"
}