{
  "ptid_time": "035_S_4114_2012-08-10",
  "img_path": "/data/qiuhui/data/adni/images/035_S_4114/2012-08-10/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 24,802 mm³, 33.2% above the reference mean. With a Z-score of 0.95 (82.9th percentile), this represents normal volume ; hippocampal volume measures 7,856 mm³, 0.6% above the reference mean. With a Z-score of 0.09 (53.4th percentile), this represents normal volume ; whole brain volume measures 1,052,200 mm³, 1.1% above the reference mean. With a Z-score of 0.13 (55.3th percentile), this represents normal volume ; entorhinal cortex volume measures 3,434 mm³, 7.1% below the reference mean. With a Z-score of -0.55 (29.0th percentile), this represents normal volume ; fusiform gyrus volume measures 16,030 mm³, 13.0% below the reference mean. With a Z-score of -1.18 (11.8th percentile), this represents mild atrophy; middle temporal gyrus volume measures 22,204 mm³, 8.1% above the reference mean. With a Z-score of 0.67 (74.9th percentile), this represents normal volume . ",
  "text_data": "Age is 56.0 years. Gender is Female. Education: 14 years. MMSE: 27.0. MoCA: 23.0. Logical Memory: 5.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements show mostly normal values, with mild atrophy only in the fusiform gyrus. The MMSE (27/30) is within normal limits, but the MoCA (23/30) suggests mild cognitive impairment (MCI). The presence of one APOE4 allele increases Alzheimer's risk but does not confirm pathology.  \n\n**Diagnosis:** **Mild Cognitive Impairment (MCI)**  \n**Confidence:** **Medium** (due to borderline MoCA and mild fusiform atrophy, but no significant hippocampal or entorhinal atrophy)",
  "timestamp": "2025-07-26T05:54:52.088664"
}