{
  "ptid_time": "051_S_6761_2019-07-05",
  "img_path": "/data/qiuhui/data/adni/images/051_S_6761/2019-07-05/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 25,452 mm³, 15.2% below the reference mean. With a Z-score of -0.36 (35.9th percentile), this represents normal volume ; hippocampal volume measures 8,217 mm³, 2.4% above the reference mean. With a Z-score of 0.24 (59.3th percentile), this represents normal volume ; whole brain volume measures 1,097,950 mm³, 3.2% below the reference mean. With a Z-score of -0.46 (32.4th percentile), this represents normal volume ; entorhinal cortex volume measures 4,581 mm³, 7.5% above the reference mean. With a Z-score of 0.52 (69.7th percentile), this represents normal volume ; fusiform gyrus volume measures 19,057 mm³, 4.3% below the reference mean. With a Z-score of -0.36 (36.1th percentile), this represents normal volume ; middle temporal gyrus volume measures 22,969 mm³, 2.5% above the reference mean. With a Z-score of 0.20 (58.1th percentile), this represents normal volume . ",
  "text_data": "Age is 69.1 years. Gender is Male. Education: 12 years. Handedness: Right. Race: White. MMSE: 28.0. MoCA: 25.0. Logical Memory: 4.0. Biomarker levels: Flobetaben (FBB): 0.99 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volume measures (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) fall within normal ranges based on Z-scores and percentiles. Cognitive screening scores (MMSE 28, MoCA 25) are within normal limits for age, with no significant impairment detected.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T07:39:02.812244"
}