Urodynamic Measuring Systems

Current economic conditions are affecting manufacturers of all types of medical equipment, including urodynamic measuring equipment. With the economy still on shaky ground and the fact that it is becoming more difficult to obtain bank loans Urologists, Gynecologists and urology clinics that have been considering purchasing new urodynamic equipment are considering other options including used or refurbished urodynamic equipment, or outsourcing to specialized urodynamic clinics.

Urodynamics refers to a group of procedures performed to examine voiding (urinating) disorders. The goal of the diagnosis and treatment of these disorders is to both protect kidney function and to keep the patient comfortable. Any procedure designed to provide information and/or diagnosis about a bladder problem is called a urodynamic test. The specific type of test is dependent on the patients’ symptoms. Urodynamic studies are performed when the patient has one of the following symptoms: frequent urination, incontinence or difficulties in emptying the bladder.

Urodynamic systems are used for the study of bladder and urethral functions using pressure and flow measurements. Urine flow testing is an essential part of urodynamic study, and flow meters are used for uroflowmetry, which is a test that measures the volume of urine released from the body, the speed with which it is released, and how long the release takes.

Urodynamic study usually includes some or all of the following measurements:

• Filling cystometry - This test measures bladder capacity, bladder contractions and urinary leakage.
• Voiding uroflometry - This test measures the strength of the urinary flow, as well as the amount of urine left in the bladder after voiding.
• Urethral pressure study - This test measures the pressure and flow of urine out of the bladder, using a sensor placed in the urethra.
• Video cystourethrography - This test helps to identify structural problems in the bladder or urethra. The bladder is filled with contrast fluid and X-rays are taken as the fluid is voided.
• Electromyogram – This urodynamics test helps measure muscle contractions that control urination.

Urodynamic systems are usually designed to be portable and many are fitted with a cart and a computer monitoring system.

The Wonders of Digital Radiography

Digital radiography is one of the most important technological advancements in medical imaging over the last ten years. Using the radiographic films of the past in x-ray imaging is likely to become outmoded within a few years. Similar to the replacement of standard film cameras with digital cameras, digital radiography images can be immediately obtained, revised, if necessary and then sent to a network of computers.

The benefits of digital radiography are vast. To begin with, radiological facilities or departments can become filmless and the technician or physician can view the requested image on a desktop or a personal computer and often report a diagnosis within just a few minutes after the examination was performed. The images are no longer stored in a single location, but can be seen at the same time by physicians who are miles away from each other.

Another major advantage of digital radiography is that radiographic images can be viewed immediately, rather than having to wait for film to be developed. Many physicians and dentist feel that this benefit, alone, is enough to cause a medical facility to switch to using only digital radiography equipment.

Just as important and beneficial, is the ability to enhance images using digital radiography. Digital radiography lets the technician make the image lighter or darker, increase contrast, increase images, and make other changes to the original image to assist in easier diagnosis of any irregularities.

In addition, the patient can be given the x-ray images on a CD to take to another physician or hospital, thanks to digital radiography. Radiographic images can be stored for years and easily retrieved when needed, and from multiple locations. Digital radiography has been very helpful as huge patient files that are difficult to keep track of are no longer necessary.

It is also no longer necessary to weight the risks of x-rays, as it exposes the patient to radiation. Digital radiography has reduced the amount of radiation the patient is exposed to by 70-80%, which is particularly important when multiple images are necessary in dental or medical applications.

A Look at Digital Mammography Systems

Designed to produce radiographic images of the breast, mammography x-ray systems are primarily used for breast cancer screening, staging and grading, and pinpointing specific diagnoses in patients displaying symptoms. Most mammographs show magnified views of the breast, as well as spot images. Special stereotactic attachments facilitate performing stereotactic biopsy procedures. Digital mammography images can be achieved either by a full-field digital detector, or by using CR cassettes and a CR reader. Also, a small-sized digital detector can be integrated into an analogue mammography for image spotting and for of guiding stereotactic biopsies.

The major components of a mammography system are:

• The pedestal support for the tube, the breast platform and the cassette holder or detector
• The X-ray tube assembly, including the collimator and the filters to reduce low energy radiation
• The breast-holding platform and compression paddle
• The detector or cassette holder

There are several benefits of using digital radiography:

• More efficient storage of and access to images
• Fewer retakes
• Better visualization of dense breasts
• Availability of image post-processing and image manipulation

Clinical studies have been reported and generally suggest that digital mammography provides either equal or better imaging performance than film or screen imaging. Digital mammography systems usually have a deeper dynamic range. It is important to note that pixel size is not a good indicator of spatial resolution, as the noise and blurring effects in the detector system can have a significant effect on resolution. In addition, different types of detector technologies have different noise and blurring characteristic.

The user interface should enable full visualization of image data. Standard imaging processing typically includes:

• Magnification, zoom and roam functionalities
• Window and leveling (contrast and brightness)
• Image flip and rotation
• Edge enhancement and noise reduction
• Black/white inversion

How to Choose an Operating Room Table

Finding the right operating room table is essential, as operating room tables are one of the most important components in operating rooms, as they provide the support to the patient during surgeries

There are a number of factors to take into consideration when looking for operating room tables:

• Operating room tables should be planned ergonomically
• Operating room tables need to be safe and adjustable for all sizes and shapes of patients
• Operating room tables need to be designed to suit the surgical specialties they will be used for

There are two basic types of operating room table systems: fixed base and mobile table. The fixed base operating room table has a number of different tabletops that can be fitted to the fixed pedestal. The patient is placed onto a tabletop, which is then placed on a cart to wheel the patient into the operating room where the tabletop is then attached to the pedestal.

The mobile operating room tables have a permanently attached tabletop on a movable base that has wheels and brakes. The patients are placed on the operating room table and wheeled into the operating room. The base and wheels are locked during surgical surgery, so that it can’t move.

The top of the operating room table should be made out of rigid material, transparent to x-rays and stable enough to carry very heavy people. The mattress is also important: it needs to be removable, washable, and antistatic, made of a pressure-redistributing material, to avoid the development of pressure ulcers and bed sores.

The Advantages of Home Hemodialysis

For patients with advanced kidney disease, Hemodialysis is a life-saving process of renal replacement therapy, used to replace kidney functioning that has been compromised or lost. The Hemodialysis devices imitate the way the damaged or impaired kidneys are supposed to work, taking over their job of cleaning the blood of waste products and excess solutes, while restoring the essential solutes in the blood to an acceptable level.

The dialysis system pumps purified water and electrolytes through tubes to the dialyzer. The waste products are removed by the Hemodialysis system and an electronic detector monitors the outgoing liquid for possible blood seepage.

During the process, the patient's blood is cleaned of waste and excess water. The waste products from the patient's blood pass through a semi- permeable membrane into the dialysis fluid. It is a diffusive process maintained by a constant state of unequal levels of solute concentrate, and waste products are removed from the blood and refilled from the elecrolytes in the dialysis fluid.

An internal computer is built into the Hemodialysis system, which facilitates the blood and dialysis fluid delivery systems to deliver the necessary amount, and for the treatment to be monitored. Alarms go off to alert the healthcare professional or patient to check the system if adjustment is required. An integrated microprocessor also allows treatment data to be recorded and stored for observation purposes.

Hemodialysis machines are built specially to be protected from extreme temperatures, spilled liquid, leakage, power interruptions, etc.

Home Hemodialysis encourages independence as self-care/ independent care means patients are taking responsibility for their own health by becoming dedicated to a healthy lifestyle and avoiding illness, commonly pertinent to the management of long-term or serious medical conditions. Self-care Hemodialysis does not have to be essentially carried out in the patient's home as renal centers and satellite units enable patients to self-manage their treatment in centers with support, with clinical assistance available, if needed.

To carry out Hemodialysis at home, the patient and/or a helper or spouse learns to use the system, take an accurate blood pressure reading, and to replace needles and attach the dialysis lines independently, as necessary. Doing Hemodialysis at home offers a large number of advantages, including more flexibility to tailor the dialysis regimen by changing timing or length of sessions, making it easier for the patient to lead a normal life. Home-based Hemodialysis is also more cost-effective than hospital treatment and improves the quality-of-life of the patients, allowing them more independence and empowering their choices.

Before home Hemodialysis is considered, it is important to carefully explore the patient’s home environment and if there is suitable space for the equipment near the main water and drainage area of the house. The water pressure and quality also must be within suitable limits. All electrical wiring must be checked and other conditions in the home may need updating.

Patient/Hemodialysis machine interaction is an important consideration. Home Hemodialysis machines have a number of options which enable the patient to more easily more easily use the machine, such as height and positioning.

Making sure the Hemodialysis patient is aware of all support systems available will strengthen their ability to trust that they can take care of their own healthcare needs as much as possible, so they can be independent and live a full and fulfilling life.