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Imaging Studies I: CT and MRI01:14

Imaging Studies I: CT and MRI

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Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
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Computed Tomography (CT) scan:
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Tracking the Mammary Architectural Features and Detecting Breast Cancer with Magnetic Resonance Diffusion Tensor Imaging
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Noncontrast Breast MRI During Pregnancy Using Diffusion Tensor Imaging: A Feasibility Study.

Noam Nissan1,2, Edna Furman-Haran3, Tanir Allweis4

  • 1Department of Radiology, Sheba Medical Center, Israel.

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|September 1, 2018
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Summary
This summary is machine-generated.

Noncontrast breast MRI using diffusion tensor imaging (DTI) is feasible for diagnosing pregnancy-associated breast cancer (PABC). This technique shows promise as an adjunct tool for breast evaluation during pregnancy, offering a safe alternative to contrast-enhanced MRI.

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Area of Science:

  • Medical Imaging
  • Oncology
  • Radiology

Background:

  • Pregnancy-associated breast cancer (PABC) often presents diagnostic challenges due to delayed detection.
  • Contrast-enhanced MRI is contraindicated in pregnancy as gadolinium agents cross the placenta.

Purpose of the Study:

  • To assess the feasibility and clinical utility of noncontrast breast MRI with diffusion tensor imaging (DTI) for PABC diagnosis.
  • To evaluate DTI's role in the diagnostic workup of breast conditions during pregnancy.

Main Methods:

  • A prospective study involving 25 pregnant participants was conducted.
  • Noncontrast 1.5T MRI with T2-weighted and DTI sequences was performed, with a scan time of approximately 12 minutes.
  • DTI parametric maps were generated and analyzed, correlating findings with ultrasound and pathology.

Main Results:

  • Noncontrast DTI MRI scans were technically successful and diagnostically adequate in most participants.
  • DTI parametric maps effectively visualized PABC lesions, showing significant contrast with healthy tissue (P < 0.001).
  • Tumor size measurements from DTI correlated well with ultrasound (r=0.97) and pathology (r=0.95), though small lesions (<0.7 cm) were not always depicted.

Conclusions:

  • Noncontrast breast MRI using DTI is feasible and well-tolerated in pregnant individuals.
  • DTI shows potential as an adjunctive, noninvasive tool for breast evaluation during pregnancy.
  • Further research with larger cohorts is needed to confirm DTI's diagnostic value in PABC.