{
  "ptid_time": "116_S_1315_2010-04-01",
  "img_path": "/data/qiuhui/data/adni/images/116_S_1315/2010-04-01/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 36,731 mm³, 0.6% below the reference mean. With a Z-score of -0.02 (49.3th percentile), this represents normal volume ; hippocampal volume measures 5,402 mm³, 16.8% below the reference mean. With a Z-score of -1.35 (8.9th percentile), this represents mild atrophy; whole brain volume measures 908,926 mm³, 2.1% below the reference mean. With a Z-score of -0.25 (40.2th percentile), this represents normal volume ; entorhinal cortex volume measures 2,568 mm³, 25.8% below the reference mean. With a Z-score of -1.39 (8.2th percentile), this represents mild atrophy; fusiform gyrus volume measures 11,386 mm³, 29.3% below the reference mean. With a Z-score of -2.20 (1.4th percentile), this represents significant atrophy; middle temporal gyrus volume measures 16,895 mm³, 6.3% below the reference mean. With a Z-score of -0.56 (28.8th percentile), this represents normal volume . ",
  "text_data": "Age is 86.3 years. Gender is Female. Education: 14 years. MMSE: 24.0. Logical Memory: 0.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The patient shows mild to significant atrophy in key Alzheimer's-related regions (hippocampus, entorhinal cortex, fusiform gyrus) despite normal ventricular and whole brain volumes. The MMSE score of 24 suggests mild cognitive impairment, and the absence of APOE4 reduces genetic risk but does not rule out neurodegeneration.  \nDiagnosis: MCI  \nConfidence: Medium",
  "timestamp": "2025-07-26T12:05:25.899804"
}