Nav: Home

Transvaginal ultrasound superior to transrectal ultrasound for staging rectal cancer in women

May 03, 2004

Transvaginal ultrasound surpasses the capabilities of transrectal ultrasound in evaluating women with rectal tumors, as shown by a new study performed at the Toronto General Hospital in Canada.

The study states that transvaginal ultrasound shows superior imaging of the rectum and the surrounding tissues, better resolves rectal wall layers, and defines more clearly the extent of rectal cancer. It is also easily performed with the conventional ultrasound probes used for other gynecologic imaging. "The patients also prefer transvaginal ultrasound to transrectal ultrasound as it causes less discomfort," said Kavita Dhamanaskar, MD, the lead author of the study.

According to Dr. Dhamanaskar, transrectal ultrasound was first developed to address the issue of scanning the prostate and rectum. "Although we are critical of it, in large part the technique has been successful and remains the accepted standard due to the capability of ultrasound to easily resolve rectal wall layers. Also, a major part of the patient population is men, who would be staged utilizing transrectal ultrasound. We have tried to improve our ability of evaluating rectal neoplasms in women, and our results show that we've accomplished that by using transvaginal ultrasound," she said.

The researchers also found that transvaginal ultrasound was useful for other nongynecologic conditions. "Besides staging rectal tumors, transvaginal ultrasound has helped us diagnose other bowel pathology including gastrointestinal stromal tumors, inflammatory bowel disease, anorectal fistulas and fissures, and tumors and metastases in the rectovaginal pouch," said Stephanie Wilson, MD, supervising author of the study and head of the ultrasound division at the Toronto General Hospital.

The study will be presented on May 3 during the American Roentgen Ray Society Annual Meeting in Miami Beach, FL.
-end-


American College of Radiology

Related Ultrasound Articles:

Ultrasound aligns living cells in bioprinted tissues
Researchers have developed a technique to improve the characteristics of engineered tissues by using ultrasound to align living cells during the biofabrication process.
Ultrasound for thrombosis prevention
Researchers established real-time ultrasonic monitoring of the blood's aggregate state using the in vitro blood flow model.
Ultra ultrasound to transform new tech
A new, more sensitive method to measure ultrasound may revolutionize everything from medical devices to unmanned vehicles.
Shoulder 'brightness' on ultrasound may be a sign of diabetes
A shoulder muscle that appears unusually bright on ultrasound may be a warning sign of diabetes, according to a new study.
Ultrasound-firewall for mobile phones
Mobile phones and tablets through so-called audio tracking, can be used by means of ultrasound to unnoticeably track the behaviour of their users: for example, viewing certain videos or staying in specific rooms and places.
Designing a new material for improved ultrasound
Development of a theoretical basis for ultrahigh piezoelectricity in ferroelectric materials led to a new material with twice the piezo response of any existing commercial ferroelectric ceramics, according to an international team of researchers from Penn State, China and Australia.
Atomic structure of ultrasound material not what anyone expected
Lead magnesium niobate (PMN) is a prototypical
American Institute of Ultrasound in Medicine (AIUM) takes steps to improve the quality of ultrasound imaging in obstetrics and gynecology
The American Institute of Ultrasound in Medicine (AIUM) convened a forum tasked with developing a roadmap for quality improvement in ultrasound imaging in obstetrics and gynecology and set up a task force to establish a consensus curriculum and competency assessment tools for residency training.
Augmented tongue ultrasound for speech therapy
Researchers have developed a system that can display the movements of our own tongues in real time.
Ultrasound imaging of the brain and liver
Ultrasound is commonly used in diagnostic imaging of the body's soft tissues, including muscles, joints, tendons and internal organs.
More Ultrasound News and Ultrasound Current Events

Top Science Podcasts

We have hand picked the top science podcasts of 2019.
Now Playing: TED Radio Hour

Risk
Why do we revere risk-takers, even when their actions terrify us? Why are some better at taking risks than others? This hour, TED speakers explore the alluring, dangerous, and calculated sides of risk. Guests include professional rock climber Alex Honnold, economist Mariana Mazzucato, psychology researcher Kashfia Rahman, structural engineer and bridge designer Ian Firth, and risk intelligence expert Dylan Evans.
Now Playing: Science for the People

#540 Specialize? Or Generalize?
Ever been called a "jack of all trades, master of none"? The world loves to elevate specialists, people who drill deep into a single topic. Those people are great. But there's a place for generalists too, argues David Epstein. Jacks of all trades are often more successful than specialists. And he's got science to back it up. We talk with Epstein about his latest book, "Range: Why Generalists Triumph in a Specialized World".
Now Playing: Radiolab

Dolly Parton's America: Neon Moss
Today on Radiolab, we're bringing you the fourth episode of Jad's special series, Dolly Parton's America. In this episode, Jad goes back up the mountain to visit Dolly's actual Tennessee mountain home, where she tells stories about her first trips out of the holler. Back on the mountaintop, standing under the rain by the Little Pigeon River, the trip triggers memories of Jad's first visit to his father's childhood home, and opens the gateway to dizzying stories of music and migration. Support Radiolab today at Radiolab.org/donate.