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Fixed-dose regimens are a common approach to administer drugs to achieve and maintain desired levels of the drug in the body. In this dosing strategy, a specific amount of medication is given at regular intervals, often multiple times a day, to ensure a consistent drug concentration in the bloodstream.
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Designing a dosage regimen, which refers to the manner of drug administration, is a complex process involving the selection of drug dose, route, and frequency. This process is underpinned by pharmacokinetic parameters derived from tests and population averages. These parameters are then tailored to patient-specific variables such as diagnosis, demographics, and allergy status. Once therapy commences, therapeutic response monitoring is critical and achieved through clinical and physical...
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A rational dosage regimen considers a drug's pharmacokinetics, including its absorption, distribution, metabolism, and elimination from the body. By understanding these factors, the appropriate dosage can be determined, and the dosing schedule can be designed to achieve and maintain the desired therapeutic effect while minimizing adverse effects.
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A loading dose is an essential pharmacological strategy to rapidly achieve the target plasma drug concentration necessary for an immediate therapeutic effect. This approach is especially critical for drugs characterized by slow absorption or extended half-lives, where delaying therapeutic plasma levels could compromise treatment outcomes. By administering a loading dose, clinicians ensure a prompt onset of drug action, even for agents with complex pharmacokinetic profiles.Achieving steady-state...
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Dose management software implementation in mammography.

E T Samara1, V Tsapaki2, D Sramek3

  • 1Valais Hospital, Sion, Switzerland.

Physica Medica : PM : an International Journal Devoted to the Applications of Physics to Medicine and Biology : Official Journal of the Italian Association of Biomedical Physics (AIFB)
|November 26, 2019
PubMed
Summary
This summary is machine-generated.

A dose management software (DMS) effectively analyzed mammography radiation exposure, establishing typical mean glandular dose (MGD) values for screening and diagnostics. This aids in optimizing patient safety and radiographer performance.

Keywords:
Dose management softwareMammography

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Area of Science:

  • Medical Imaging
  • Radiological Physics
  • Health Informatics

Background:

  • Mammography is crucial for breast cancer detection.
  • Radiation dose optimization is essential for patient safety.
  • Accurate dose monitoring requires robust data analysis tools.

Purpose of the Study:

  • To evaluate the utility of a dose management software (DMS) in mammography.
  • To analyze clinical practices regarding radiation exposure in mammography.
  • To establish typical mean glandular dose (MGD) values in Switzerland.

Main Methods:

  • Collected and analyzed mean glandular dose (MGD) data from ~10,000 mammography images.
  • Considered factors: anode/filter, projection, compressed breast thickness (CBT), and compression force.
  • Investigated causes of elevated MGD and implemented corrective actions.

Main Results:

  • Defined MGD values for different compressed breast thicknesses (CBT) in craniocaudal (CC) and mediolateral oblique (MLO) views.
  • Average MGD for screening (CBT 60-69 mm): 1.84 mGy (CC), 1.85 mGy (MLO).
  • Average MGD for diagnostics (CBT 60-69 mm): 1.95 mGy (CC), 2.01 mGy (MLO).

Conclusions:

  • DMS significantly aids in analyzing clinical and technical parameters for radiation dose evaluation.
  • DMS facilitates the assessment of radiographers' performance.
  • DMS highlights the role of medical physicists in dose management and optimization.