{
  "ptid_time": "068_S_0802_2012-11-13",
  "img_path": "/data/qiuhui/data/adni/images/068_S_0802/2012-11-13/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 31,373 mm³, 15.1% below the reference mean. With a Z-score of -0.41 (34.2th percentile), this represents normal volume ; hippocampal volume measures 6,699 mm³, 3.1% above the reference mean. With a Z-score of 0.25 (59.9th percentile), this represents normal volume ; whole brain volume measures 952,560 mm³, 2.6% above the reference mean. With a Z-score of 0.32 (62.4th percentile), this represents normal volume ; entorhinal cortex volume measures 3,743 mm³, 8.1% above the reference mean. With a Z-score of 0.44 (66.9th percentile), this represents normal volume ; fusiform gyrus volume measures 15,904 mm³, 1.3% below the reference mean. With a Z-score of -0.10 (46.2th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,122 mm³, 6.1% above the reference mean. With a Z-score of 0.54 (70.5th percentile), this represents normal volume . ",
  "text_data": "Age is 86.9 years. Gender is Female. Education: 8 years. Medical history: Psychiatric; Neurologic; Head, Eyes, Ears, Nose and Throat; Cardiovascular; Musculoskeletal; Endocrine-Metabolic; Smoking; Major Surgical Procedures. MMSE: 27.0. MoCA: 24.0. Logical Memory: 8.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volume measures (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) are within normal ranges, with Z-scores close to or slightly above the mean. Cognitive scores (MMSE 27, MoCA 24) are borderline for mild cognitive impairment (MCI) but not strongly indicative of dementia, especially given the absence of APOE4 and normal structural imaging.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** Medium (due to borderline MoCA score but otherwise normal findings)",
  "timestamp": "2025-07-26T08:51:10.910726"
}