{
  "ptid_time": "135_S_4598_2017-07-24",
  "img_path": "/data/qiuhui/data/adni/images/135_S_4598/2017-07-24/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 28,069 mm³, 0.0% above the reference mean. With a Z-score of 0.00 (50.0th percentile), this represents normal volume ; hippocampal volume measures 6,980 mm³, 1.9% below the reference mean. With a Z-score of -0.17 (43.1th percentile), this represents normal volume ; whole brain volume measures 1,061,960 mm³, 9.0% above the reference mean. With a Z-score of 1.13 (87.0th percentile), this represents mild enlargement; entorhinal cortex volume measures 3,182 mm³, 13.4% below the reference mean. With a Z-score of -0.82 (20.6th percentile), this represents normal volume ; fusiform gyrus volume measures 17,681 mm³, 3.9% above the reference mean. With a Z-score of 0.36 (64.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 26,705 mm³, 39.3% above the reference mean. With a Z-score of 3.41 (100.0th percentile), this represents profound enlargement. ",
  "text_data": "Age is 70.6 years. Gender is Female. Education: 20 years. MMSE: 30.0. MoCA: 30.0. Logical Memory: 21.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.05 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements show mostly normal or above-average volumes, with only the entorhinal cortex slightly below the reference mean (Z-score -0.82, 20.6th percentile). Cognitive scores (MMSE 30, MoCA 30) are intact, and amyloid PET (AV45) is normal. No significant atrophy or biomarker evidence of Alzheimer’s pathology is present.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T15:39:12.151390"
}