{
  "ptid_time": "037_S_0303_2006-05-03",
  "img_path": "/data/qiuhui/data/adni/images/037_S_0303/2006-05-03/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 33,209 mm³, 29.4% below the reference mean. With a Z-score of -0.85 (19.7th percentile), this represents normal volume ; hippocampal volume measures 5,998 mm³, 13.9% below the reference mean. With a Z-score of -1.20 (11.4th percentile), this represents mild atrophy; whole brain volume measures 937,578 mm³, 8.9% below the reference mean. With a Z-score of -1.17 (12.2th percentile), this represents mild atrophy; entorhinal cortex volume measures 3,373 mm³, 15.0% below the reference mean. With a Z-score of -0.98 (16.3th percentile), this represents normal volume ; fusiform gyrus volume measures 17,172 mm³, 4.9% below the reference mean. With a Z-score of -0.43 (33.4th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,748 mm³, 12.0% below the reference mean. With a Z-score of -1.08 (14.1th percentile), this represents mild atrophy. ",
  "text_data": "Age is 84.2 years. Gender is Male. Education: 16 years. Handedness: Right. Race: White. Medical history: Neurologic; Head, Eyes, Ears, Nose and Throat; Cardiovascular; Musculoskeletal; Endocrine-Metabolic; Gastrointestinal; Hematopoietic-Lymphatic; Renal-Genitourinary; Major Surgical Procedures. MMSE: 29.0. Logical Memory: 12.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The imaging shows mild atrophy in the hippocampus, whole brain, and middle temporal gyrus, which are regions commonly affected in early neurodegenerative processes. However, the MMSE score of 29 is within the normal range, and other key regions (ventricular, entorhinal cortex, fusiform gyrus) are normal, suggesting no significant cognitive impairment at this stage.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** Medium (due to mild atrophy in some regions but preserved cognitive function)",
  "timestamp": "2025-07-26T06:25:10.343285"
}