{
  "ptid_time": "029_S_6726_2019-06-13",
  "img_path": "/data/qiuhui/data/adni/images/029_S_6726/2019-06-13/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 31,879 mm³, 17.2% below the reference mean. With a Z-score of -0.41 (34.0th percentile), this represents normal volume ; hippocampal volume measures 8,288 mm³, 9.6% above the reference mean. With a Z-score of 0.94 (82.7th percentile), this represents normal volume ; whole brain volume measures 1,031,190 mm³, 4.5% below the reference mean. With a Z-score of -0.58 (28.1th percentile), this represents normal volume ; entorhinal cortex volume measures 5,608 mm³, 36.8% above the reference mean. With a Z-score of 2.49 (99.4th percentile), this represents significant enlargement; fusiform gyrus volume measures 17,941 mm³, 4.8% below the reference mean. With a Z-score of -0.41 (34.2th percentile), this represents normal volume ; middle temporal gyrus volume measures 18,752 mm³, 12.1% below the reference mean. With a Z-score of -1.09 (13.8th percentile), this represents mild atrophy. ",
  "text_data": "Age is 70.6 years. Gender is Male. Education: 18 years. MMSE: 30.0. MoCA: 25.0. Logical Memory: 15.0. Biomarker levels: Flobetaben (FBB): 0.92 SUVR (moderate reduced). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measures are largely within normal ranges, with the exception of mild atrophy in the middle temporal gyrus and significant enlargement of the entorhinal cortex (which is atypical for Alzheimer’s). Cognitive testing shows a perfect MMSE (30/30) but a slightly reduced MoCA (25/30), suggesting possible mild executive or visuospatial deficits.  \n\n**Diagnosis:** **MCI (Mild Cognitive Impairment)**  \n**Confidence:** **Medium** (The MoCA score is borderline, and the entorhinal cortex enlargement is unusual—could warrant further investigation for non-Alzheimer’s causes.)",
  "timestamp": "2025-07-26T04:33:56.801774"
}