{
  "ptid_time": "127_S_6203_2018-03-22",
  "img_path": "/data/qiuhui/data/adni/images/127_S_6203/2018-03-22/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 13,287 mm³, 40.5% below the reference mean. With a Z-score of -1.01 (15.5th percentile), this represents mild atrophy; hippocampal volume measures 7,491 mm³, 2.5% below the reference mean. With a Z-score of -0.28 (38.9th percentile), this represents normal volume ; whole brain volume measures 975,173 mm³, 5.2% below the reference mean. With a Z-score of -0.65 (25.7th percentile), this represents normal volume ; entorhinal cortex volume measures 3,329 mm³, 14.5% below the reference mean. With a Z-score of -1.12 (13.1th percentile), this represents mild atrophy; fusiform gyrus volume measures 16,652 mm³, 8.6% below the reference mean. With a Z-score of -0.96 (16.8th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,408 mm³, 0.5% below the reference mean. With a Z-score of -0.05 (48.1th percentile), this represents normal volume . ",
  "text_data": "Age is 67.6 years. Gender is Female. Education: 16 years. Handedness: Right. Race: More than one race. MMSE: 29.0. MoCA: 28.0. Logical Memory: 14.0. APOEε4 alleles: 0.0. Biomarker levels: Flobetaben (FBB): 1.06 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The imaging shows mild atrophy in the ventricular volume and entorhinal cortex, but other regions (hippocampus, whole brain, fusiform gyrus, middle temporal gyrus) are within normal ranges. Cognitive scores (MMSE 29, MoCA 28) are intact, and there is no APOE4 risk allele.  \n\n**Diagnosis:** **CN (Cognitively Normal)**  \n**Confidence:** **Medium** (Mild atrophy in some regions could suggest early changes, but cognitive performance remains strong, and no significant hippocampal atrophy is present.)",
  "timestamp": "2025-07-26T13:30:28.614935"
}