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Review of advanced catheter technologies in radiation oncology brachytherapy procedures.

Zhou J, Zamdborg L, Sebastian E - Cancer Manag Res (2015)

Bottom Line: The development of new catheter and applicator technologies in recent years has significantly improved treatment accuracy, efficiency, and outcomes in brachytherapy.Several newly developed applicators for accelerated partial breast irradiation and gynecologic treatments are also reviewed.New hypofractionated high dose rate treatment schemes in prostate cancer and accelerated partial breast irradiation are presented.

View Article: PubMed Central - PubMed

Affiliation: Department of Radiation Oncology, Beaumont Health System, Royal Oak, MI, USA ; Oakland University William Beaumont School of Medicine, Royal Oak, MI, USA.

ABSTRACT
The development of new catheter and applicator technologies in recent years has significantly improved treatment accuracy, efficiency, and outcomes in brachytherapy. In this paper, we review these advances, focusing on the performance of catheter imaging and reconstruction techniques in brachytherapy procedures using magnetic resonance images and electromagnetic tracking. The accuracy of catheter reconstruction, imaging artifacts, and other notable properties of plastic and titanium applicators in gynecologic treatments are reviewed. The accuracy, noise performance, and limitations of electromagnetic tracking for catheter reconstruction are discussed. Several newly developed applicators for accelerated partial breast irradiation and gynecologic treatments are also reviewed. New hypofractionated high dose rate treatment schemes in prostate cancer and accelerated partial breast irradiation are presented.

No MeSH data available.


Related in: MedlinePlus

Electromagnetic tracking system setup and performance investigated using a calibration phantom.
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f3-cmar-7-199: Electromagnetic tracking system setup and performance investigated using a calibration phantom.

Mentions: In our study, a DC electromagnetic FG (mid-range model) and a 6 degree-of-freedom sensor with a diameter of 1.3 mm (Model 130) were used in a trakSTAR system (Ascension Technology Corporation, Shelburne, VT, USA, as shown in Figure 2) for tracking catheter positions during prostate HDR brachytherapy. According to the manufacturer, this FG and sensor combination can provide a 46 cm working range from the center of the FG. Localization accuracy was assessed using a calibration phantom with known catheter positions, as shown in Figure 3. The effects of the relative positions between the electromagnetic sensor and FG, the surrounding environment, and sampling frequencies were investigated. Our initial results showed that the performance of an EMT system can be improved by reducing the interference from surrounding equipment, decreasing the distance from the FG to the tracking area, and choosing an appropriate sampling frequency. An accuracy of 0.9±0.2 mm was obtained for dynamic tracking when using the optimum configuration.


Review of advanced catheter technologies in radiation oncology brachytherapy procedures.

Zhou J, Zamdborg L, Sebastian E - Cancer Manag Res (2015)

Electromagnetic tracking system setup and performance investigated using a calibration phantom.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4507789&req=5

f3-cmar-7-199: Electromagnetic tracking system setup and performance investigated using a calibration phantom.
Mentions: In our study, a DC electromagnetic FG (mid-range model) and a 6 degree-of-freedom sensor with a diameter of 1.3 mm (Model 130) were used in a trakSTAR system (Ascension Technology Corporation, Shelburne, VT, USA, as shown in Figure 2) for tracking catheter positions during prostate HDR brachytherapy. According to the manufacturer, this FG and sensor combination can provide a 46 cm working range from the center of the FG. Localization accuracy was assessed using a calibration phantom with known catheter positions, as shown in Figure 3. The effects of the relative positions between the electromagnetic sensor and FG, the surrounding environment, and sampling frequencies were investigated. Our initial results showed that the performance of an EMT system can be improved by reducing the interference from surrounding equipment, decreasing the distance from the FG to the tracking area, and choosing an appropriate sampling frequency. An accuracy of 0.9±0.2 mm was obtained for dynamic tracking when using the optimum configuration.

Bottom Line: The development of new catheter and applicator technologies in recent years has significantly improved treatment accuracy, efficiency, and outcomes in brachytherapy.Several newly developed applicators for accelerated partial breast irradiation and gynecologic treatments are also reviewed.New hypofractionated high dose rate treatment schemes in prostate cancer and accelerated partial breast irradiation are presented.

View Article: PubMed Central - PubMed

Affiliation: Department of Radiation Oncology, Beaumont Health System, Royal Oak, MI, USA ; Oakland University William Beaumont School of Medicine, Royal Oak, MI, USA.

ABSTRACT
The development of new catheter and applicator technologies in recent years has significantly improved treatment accuracy, efficiency, and outcomes in brachytherapy. In this paper, we review these advances, focusing on the performance of catheter imaging and reconstruction techniques in brachytherapy procedures using magnetic resonance images and electromagnetic tracking. The accuracy of catheter reconstruction, imaging artifacts, and other notable properties of plastic and titanium applicators in gynecologic treatments are reviewed. The accuracy, noise performance, and limitations of electromagnetic tracking for catheter reconstruction are discussed. Several newly developed applicators for accelerated partial breast irradiation and gynecologic treatments are also reviewed. New hypofractionated high dose rate treatment schemes in prostate cancer and accelerated partial breast irradiation are presented.

No MeSH data available.


Related in: MedlinePlus