{
  "ptid_time": "013_S_4268_2013-11-20",
  "img_path": "/data/qiuhui/data/adni/images/013_S_4268/2013-11-20/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 19,111 mm³, 14.4% below the reference mean. With a Z-score of -0.36 (35.9th percentile), this represents normal volume ; whole brain volume measures 995,673 mm³, 3.3% below the reference mean. With a Z-score of -0.41 (34.3th percentile), this represents normal volume ; entorhinal cortex volume measures 3,391 mm³, 12.9% below the reference mean. With a Z-score of -1.00 (15.9th percentile), this represents normal volume ; fusiform gyrus volume measures 17,319 mm³, 4.9% below the reference mean. With a Z-score of -0.55 (29.1th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,161 mm³, 16.4% below the reference mean. With a Z-score of -1.45 (7.3th percentile), this represents mild atrophy. ",
  "text_data": "Age is 65.5 years. Gender is Female. Education: 15 years. MMSE: 30.0. MoCA: 27.0. Logical Memory: 8.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 0.97 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements show mostly normal volumes, with mild atrophy only in the middle temporal gyrus. Cognitive scores (MMSE 30, MoCA 27) are within normal ranges, and amyloid PET (AV45) is normal. No significant structural or biomarker evidence of neurodegeneration is present.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-25T23:30:55.540586"
}