{
  "ptid_time": "131_S_0441_2008-04-24",
  "img_path": "/data/qiuhui/data/adni/images/131_S_0441/2008-04-24/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 31,600 mm³, 12.6% above the reference mean. With a Z-score of 0.29 (61.3th percentile), this represents normal volume ; hippocampal volume measures 6,783 mm³, 4.7% below the reference mean. With a Z-score of -0.43 (33.5th percentile), this represents normal volume ; whole brain volume measures 956,910 mm³, 1.8% below the reference mean. With a Z-score of -0.23 (40.9th percentile), this represents normal volume ; entorhinal cortex volume measures 3,059 mm³, 16.7% below the reference mean. With a Z-score of -1.03 (15.2th percentile), this represents mild atrophy; fusiform gyrus volume measures 17,266 mm³, 1.5% above the reference mean. With a Z-score of 0.14 (55.4th percentile), this represents normal volume ; middle temporal gyrus volume measures 18,722 mm³, 2.3% below the reference mean. With a Z-score of -0.20 (42.0th percentile), this represents normal volume . ",
  "text_data": "Age is 74.7 years. Gender is Female. Education: 16 years. MMSE: 30.0. Logical Memory: 17.0. Laboratory findings: Eosinophils: 0.40 (significant elevated); Eosinophils: 5.40 (significant elevated); Total Protein: 8.10 (significant elevated); Creatine Kinase: 380.00 (profound elevated); LDH: 252.00 (profound elevated); Calcium (EDTA): 10.80 (significant elevated); Urea Nitrogen: 9.00 (significant reduced). APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain volume data shows mild atrophy in the entorhinal cortex (Z-score -1.03, 15.2th percentile), while other regions (hippocampus, whole brain, fusiform gyrus, middle temporal gyrus) are within normal ranges. The MMSE score of 30 is intact, and there is no APOE4 genetic risk factor.  \n\n**Diagnosis:** **CN (Cognitively Normal)**  \n**Confidence:** **Medium** (Mild entorhinal atrophy could be an early preclinical sign, but no cognitive impairment is present yet.)",
  "timestamp": "2025-07-26T15:06:05.623597"
}