SWT

Selective Waveband Technology 

 
Selective Waveband Technology (SWT®) is a new and unique technology, combining the advantages of both Laser and Intense Pulsed Light systems, to create a new selective waveband system.

​​What is Dual Mode Filtering

Ellipse SWT® technology is more than intense pulsed light. Is a clinically proven technology based on the principle of Dual Mode Filtering. This means that Ellipse systems filter the light more effectively; not only removing the lower wavelengths but also – exclusively -, those higher wavelengths that do little to help the treatment, but make the treatment uncomfortable.Dual Mode Filtering technology is now an even greater asset, since we have been granted a U.S. patent for using water as one of our filters.

 

What is Square Pulse Technology (SPT)

Square Pulse Technology ensures that the pulse of energy immediately reaches the desired level, stays at that level for the duration of the pulse and immediately shuts down at the end of that pulse. This minimizes the risk of adverse effects.

 

PDT:

Enhanced Treatments

 
Treat actinic keratosis, acne and reduce fine lines and wrinkles with PDT.

PDT laser represents the cutting edge of research in light based medicine, and works in two stages:

  • A photosensitizer is applied to the skin, and the body converts this into a chemical (often the naturally occurring chemical Protoporphyrin IX or PpIX).

  • The PpIX created a response to light within a certain waveband, provided by the Ellipse PR 530 or PL 400 applicators.

 

Two of the Ellipse SWT applicators are approved as the Light source for PDT treatments of the skin. The PR 530 applicator is already known for its use vascular and photo rejuvenation treatments. This applicator matches three of the PpIX absorption peaks, allowing a photochemical pathway to be added to existing acne and photo rejuvenation treatments.

Because of the wavelengths and pulse times used, the PR 530 applicator is suitable for patients of Fitzpatrick Skin Types 1 to 3, with zero or light suntan. The PL 400 applicator – the latest addition to the Ellipse PLUS series – matches all 5 PpIX absorption peaks. By offering a series of longer, low energy passes, it offers a comfortable PDT treatment suitable for slightly more tanned patients, or those of Skin Types 1 to 4.

The facts about PDT

There are numerous peer-reviewed clinical abstracts that show the safety and effectiveness of PDT treatments. A large number of these involve using a specific photosensitizer in a treatment such as rejuvenation, acne and actinic keratosis.


Photo Spray Intense®

A breakthrough topical photosensitiser designed to work in combination with Ellipse SWT treatment for wrinkle reduction. Ellipse wrinkle reduction treatment delivers visible improvements in as little as one month.

The photosensitiser is liposome encapsulated to safely and effectively transport the active ingredient deep beneath the surface of the skin. The spray ensures results with even greater safety.

Once Intense Photo Spray is absorbed into the skin, the formula's active ingredient is converted into protoporphyrin IX (PpIX). When activated by an appropriate light wavelength, a cytotoxic reaction begins in the treated skin cell. This triggers a cellular repair response and stimulates local collagen production. Externally the result is visible filling of facial wrinkles.

 

SFS:

Shape from shading

 
Skin image reconstruction is achieved using the SFS technique, specially designed to minimise shading and optimise measurement accuracy.

Image reconstruction using this technique is applied in skin analysis, to determine wrinkle depth and widths, other lesions, and total skin roughness.

 

Unlike other skin analysis systems where only three colour channels (red, green, blue) are used, the Antera 3D system uses reflectance mapping of seven different light wavelengths, spanning the whole visible spectrum.


This allows for a more precise view and analysis of the colour features of the skin, which consists mainly of two chromophores, melanin and haemoglobin. 

 

DIBH:

Breast and Deep Inspiration Breath Hold 

Radiation therapy has been shown to be a highly effective treatment for breast cancer. But the proximity of the left breast to the heart leaves the heart vulnerable to radiation exposure. This has been shown, in some cases, to lead to serious long-term cardiac complications¹.

Many centers are beginning to have patients use Deep Inspiration Breath Hold (DIBH) to move the heart away from the breast during therapy. However, achieving this can be challenging². Patients breathe in different ways at different times and may arch their back to simulate a deep breath in. These different movements can appear similar to a patient’s true breath hold, but do not necessarily separate the heart from the breast.

AlignRT® is commonly used during DIBH to ensure radiation is only activated when the patient is in the intended position.

During a recent study at the University of North Carolina, patients were treated using AlignRT for DIBH. Of these, 0% exhibited radiation-induced abnormalities in blood flow to the heart six months after treatment³.

There are 10 published papers covering the use of AlignRT for DIBH, and accessories are available to make DIBH with AlignRT even simpler for the patient and therapist.

 

SRS:

Fast treatment times and patient comfort with AlignRT

AlignRT’s stereotactic calibration module allows clinics to deliver the benefits of frameless, open-mask SRS and SBRT / SABR using SGRT. To deliver the accuracy required for SRS, both an open face mask (supplied by various companies) and the SRS calibration cube (supplied by Vision RT) are required. The Head Adjuster is an option to enable SRS for facilities with no couches with 6 degrees of freedom.

The module enables a range of quality assurance tests – TG142 (linear accelerator) and TG147 (non-radiographic imaging).

Tests include: End-to-end localisation assessment, hidden target testing, localisation displacement accuracy, imaging coordinate coincidence across modalities, imaging positioning / repositioning, laser alignment, Winston-Lutz, couch rotation isocenter accuracy

 

SBRT:

Tracking areas affected by respiratory motion.

Stereotactic Body Radiation Therapy (SBRT, also known as SABR) requires high positional accuracy. AlignRT® can track motion with better than 1mm accuracy, and as a result is used for both standard and breath hold SBRT.

AlignRT has been shown to help treat SBRT patients with relatively little immobilization, which leads to enhanced comfort. In addition, patients may be treated without fiducial placement, while potentially avoiding repeat imaging during the procedure.

AlignRT can reduce setup time, including shifts after X-ray imaging, and allows users to set independent thresholds for breathing. The patient can be tracked in real time and radiation stopped if they are out of position, and using breath hold technique, planned treatment volume may be minimized and 4D planning eliminated.

© 2018-19 by evomed

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