{
  "ptid_time": "024_S_6184_2020-02-10",
  "img_path": "/data/qiuhui/data/adni/images/024_S_6184/2020-02-10/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 29,762 mm³, 6.0% above the reference mean. With a Z-score of 0.14 (55.5th percentile), this represents normal volume ; hippocampal volume measures 8,331 mm³, 17.1% above the reference mean. With a Z-score of 1.57 (94.2th percentile), this represents moderate enlargement; whole brain volume measures 1,068,560 mm³, 9.6% above the reference mean. With a Z-score of 1.21 (88.7th percentile), this represents mild enlargement; entorhinal cortex volume measures 3,885 mm³, 5.8% above the reference mean. With a Z-score of 0.35 (63.8th percentile), this represents normal volume ; fusiform gyrus volume measures 19,575 mm³, 15.1% above the reference mean. With a Z-score of 1.37 (91.5th percentile), this represents mild enlargement; middle temporal gyrus volume measures 18,257 mm³, 4.8% below the reference mean. With a Z-score of -0.41 (34.0th percentile), this represents normal volume . ",
  "text_data": "Age is 72.5 years. Gender is Female. Education: 18 years. MMSE: 30.0. MoCA: 29.0. Logical Memory: 15.0. APOEε4 alleles: 0.0. Biomarker levels: Flobetaben (FBB): 0.97 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements show normal to mildly enlarged volumes in most regions, including the hippocampus, which is typically atrophic in Alzheimer's disease. Cognitive scores (MMSE 30, MoCA 29) are within the normal range, and the absence of APOE4 further reduces Alzheimer's risk.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T03:24:40.484864"
}