{
  "ptid_time": "041_S_6786_2019-08-27",
  "img_path": "/data/qiuhui/data/adni/images/041_S_6786/2019-08-27/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 24,565 mm³, 33.5% below the reference mean. With a Z-score of -0.91 (18.3th percentile), this represents normal volume ; hippocampal volume measures 6,084 mm³, 6.3% below the reference mean. With a Z-score of -0.51 (30.6th percentile), this represents normal volume ; whole brain volume measures 866,772 mm³, 6.6% below the reference mean. With a Z-score of -0.79 (21.4th percentile), this represents normal volume ; entorhinal cortex volume measures 3,373 mm³, 2.6% below the reference mean. With a Z-score of -0.14 (44.4th percentile), this represents normal volume ; fusiform gyrus volume measures 17,384 mm³, 7.9% above the reference mean. With a Z-score of 0.59 (72.4th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,398 mm³, 3.5% below the reference mean. With a Z-score of -0.31 (37.8th percentile), this represents normal volume . ",
  "text_data": "Age is 87.4 years. Gender is Female. Education: 18 years. Handedness: Left. Race: Black or African American. MMSE: 30.0. MoCA: 26.0. Logical Memory: 6.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 0.99 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements are all within normal ranges, with no significant atrophy in key regions like the hippocampus or entorhinal cortex. Cognitive scores (MMSE 30, MoCA 26) are also within normal limits, and there is no evidence of amyloid pathology (AV45 normal).  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T07:30:34.453875"
}