{
  "ptid_time": "127_S_6241_2018-05-29",
  "img_path": "/data/qiuhui/data/adni/images/127_S_6241/2018-05-29/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 52,510 mm³, 87.1% above the reference mean. With a Z-score of 1.99 (97.7th percentile), this represents moderate enlargement; hippocampal volume measures 6,186 mm³, 13.1% below the reference mean. With a Z-score of -1.20 (11.6th percentile), this represents mild atrophy; whole brain volume measures 935,412 mm³, 4.0% below the reference mean. With a Z-score of -0.51 (30.6th percentile), this represents normal volume ; entorhinal cortex volume measures 3,917 mm³, 6.6% above the reference mean. With a Z-score of 0.41 (65.8th percentile), this represents normal volume ; fusiform gyrus volume measures 16,953 mm³, 0.4% below the reference mean. With a Z-score of -0.03 (48.7th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,859 mm³, 3.6% above the reference mean. With a Z-score of 0.31 (62.3th percentile), this represents normal volume . ",
  "text_data": "Age is 72.2 years. Gender is Female. Education: 18 years. Handedness: Right. Race: More than one race. MMSE: 26.0. MoCA: 23.0. Logical Memory: 4.0. APOEε4 alleles: 0.0. Biomarker levels: Flobetaben (FBB): 1.40 SUVR (profound elevated). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The patient shows moderate ventricular enlargement (87.1% above mean) and mild hippocampal atrophy (13.1% below mean), which are structural changes often seen in neurodegenerative disorders. Cognitive testing (MMSE 26, MoCA 23) suggests mild cognitive impairment, but the absence of APOE4 reduces genetic risk.  \n\n**Diagnosis:** **Mild Cognitive Impairment (MCI)**  \n**Confidence:** **Medium** (due to mixed structural findings and borderline cognitive scores, but no clear dementia-level impairment yet)",
  "timestamp": "2025-07-26T13:30:49.994022"
}