{
  "ptid_time": "135_S_4722_2017-06-22",
  "img_path": "/data/qiuhui/data/adni/images/135_S_4722/2017-06-22/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 32,568 mm³, 16.0% above the reference mean. With a Z-score of 0.37 (64.3th percentile), this represents normal volume ; hippocampal volume measures 7,735 mm³, 8.7% above the reference mean. With a Z-score of 0.80 (78.8th percentile), this represents normal volume ; whole brain volume measures 995,173 mm³, 2.1% above the reference mean. With a Z-score of 0.27 (60.5th percentile), this represents normal volume ; entorhinal cortex volume measures 4,014 mm³, 9.3% above the reference mean. With a Z-score of 0.57 (71.6th percentile), this represents normal volume ; fusiform gyrus volume measures 16,196 mm³, 4.8% below the reference mean. With a Z-score of -0.44 (33.1th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,260 mm³, 10.9% above the reference mean. With a Z-score of 0.95 (82.8th percentile), this represents normal volume . ",
  "text_data": "Age is 73.0 years. Gender is Female. Education: 18 years. MMSE: 30.0. MoCA: 29.0. Logical Memory: 17.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.09 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (hippocampal, whole brain, entorhinal cortex, fusiform gyrus, middle temporal gyrus) are within normal ranges based on Z-scores and percentiles. Cognitive scores (MMSE 30, MoCA 29) are intact, and amyloid PET (AV45) is normal. No significant structural or biomarker abnormalities suggest cognitive impairment.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T15:42:40.985223"
}