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Related Concept Videos

Radiological Investigation I: X-ray and CT01:30

Radiological Investigation I: X-ray and CT

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Radiological investigations, including X-rays and computed tomography (CT) scans, are critical for diagnosing and evaluating various medical conditions. These imaging techniques provide valuable insights into the body's internal structures, aiding in the detection of abnormalities, assessment of disease progression, and development of treatment strategies. This article delves into two primary radiological investigations, chest X-rays and CT scans, outlining their purpose, procedures, and...
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Radiological Investigation II: MRI and Ventilation Perfusion Scan01:30

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Description
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...
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Electrical Current01:10

Electrical Current

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Electrical current is defined as the rate at which charge flows. When there is a large current present, such as that used to run a refrigerator, a large amount of charge moves through the wire in a small amount of time. If the current is small, such as that used to operate a handheld calculator, a small amount of charge moves through the circuit over a long period of time. The SI unit for current is the ampere (A), named for the French physicist André-Marie Ampère (1775–1836).
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Radiological Investigation III: Pulmonary Angiogram and PET Scan01:13

Radiological Investigation III: Pulmonary Angiogram and PET Scan

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Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
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Current Density01:21

Current Density

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The total amount of current flowing through one unit value of a cross-sectional area is referred to as current density. If the current flow is uniform, the amount of current flowing through a conductor is the same at all points along the conductor, even if the conductor area varies. The current density consists of the local magnitude and direction of the charge flow, which varies from point to point. Current density is measured in amperes per meter square, and direction is defined as the net...
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Eddy Currents01:25

Eddy Currents

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Since eddy currents occur only in conductors, magnets can separate metals from other materials. For example, in a recycling center, trash is dumped in batches down a ramp, beneath which lies a powerful magnet. Conductors in the trash are slowed by eddy currents, while nonmetals in the trash move on, separating from the metals. This works for all metals, not just ferromagnetic ones.
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Related Experiment Video

Updated: Feb 13, 2026

Studying Triple Negative Breast Cancer Using Orthotopic Breast Cancer Model
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Radiologic imaging and its current importance in breast cancer management.

Nisha Dagar1, Monu Sarin2, Piyush Yadav3

  • 1Department of Radiology, Centre of Allied Health Sciences/Amrita School of Medicine, Amrita Institute of Medical Sciences and Research Centre, Faridabad, India.

Frontiers in Radiology
|February 12, 2026
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Summary

Low-dose mammography is the most effective screening tool for asymptomatic breast cancer, significantly impacting diagnosis and patient follow-up. It remains the gold standard for breast imaging, improving early detection and treatment outcomes.

Keywords:
CECTbreastcancercontrastmagnetic resonance mammographymammography

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Area of Science:

  • Radiology
  • Oncology
  • Medical Imaging

Background:

  • Breast cancer screening is crucial for early detection and improved patient outcomes.
  • Various imaging modalities, including mammography, ultrasound, MRI, CT, and PET, are employed for breast cancer detection.
  • Advancements in digital imaging technology enhance diagnostic accuracy.

Purpose of the Study:

  • To review and assess breast imaging techniques for cancer screening.
  • To highlight the role of mammography as a primary screening tool.
  • To discuss the benefits of newer technologies like digital breast tomosynthesis.

Main Methods:

  • Comprehensive literature review of breast imaging techniques.
  • Analysis of screening recommendations and technological advancements.
  • Evaluation of mammography, breast ultrasound, breast MRI, CT, and PET.

Main Results:

  • Mammography is the primary imaging modality for breast cancer detection and screening.
  • Digital mammography improves image quality and diagnostic accuracy.
  • Breast MRI offers increased sensitivity for high-risk individuals when used with mammography.

Conclusions:

  • Low-dose mammography is the only radiographic technique proven to significantly impact asymptomatic breast cancer screening, diagnosis, and follow-up.
  • Mammography is the most accurate screening test for breast imaging.
  • Multidisciplinary imaging approaches improve breast cancer detection, diagnosis, and personalized care.