By Erik L. Ridley, AuntMinnie staff writer
November 14, 2011

With all of the attention being paid to reducing radiation dose to patients, ultrasound is getting a renewed look in many clinical indications. That new emphasis will be evident at the RSNA 2011 meeting, where a number of presentations will evaluate the utility of ultrasound versus CT, particularly in the bowel.

Ultrasound elastography also is an active research area. A number of talks will report on performance improvements gleaned from the use of in vivo compression in thyroid elastography. Other hot ultrasound topics this year include contrast-enhanced ultrasound and ultrasound guidance.

Road to RSNA 2011: Ultrasound Preview Check out our preview below of a selection of ultrasound-related scientific papers at this year's RSNA 2011 meeting. Also, for coverage of breast ultrasound topics, be sure to check out our Road to RSNA Women's Imaging Preview.

Ultrasound practitioners will have a full slate of refresher courses to choose from this year, including a Sunday, November 27, session that takes a new look at an old topic: ultrasound of the bowel (2:00 p.m-3:30 p.m., RC110, Room N226).

On Monday, November 28, an interactive session will provide RSNA 2011 attendees with great abdominal ultrasound cases seen by presenters in the liver, kidney, biliary tract, and pancreas (8:30 a.m.-10:00 a.m., RC210, Room E450B). Lower extremity venous imaging and intervention is the topic of another Monday morning refresher course (8:30 a.m.-10:00 a.m., RC212, Room S404CD).

Those interested in an update on cutting-edge ultrasound technology won't want to miss a Tuesday, November 29, refresher course on the frontiers of ultrasound (8:30 a.m.-10:00 a.m., RC310, Room S503AB). Also on Tuesday, a hands-on workshop will feature small-parts interventional ultrasound (8:30 a.m.-10:00 a.m., RC352, Room E264).

Tuesday afternoon brings a refresher course on mistakes to avoid in obstetric ultrasound (4:30 p.m.-6:00 p.m., RC410, Room N226).

Bariatric imaging is always a difficult task in ultrasound, but a refresher course on obesity and ultrasound on Wednesday, November 30, should provide attendees with some helpful tips (8:30 a.m.-10:00 a.m., RC510, Room S103CD). A breast ultrasound refresher course is also on tap for Wednesday morning (8:30 a.m.-10:00 a.m., RC521, Room N230).

A how-to workshop on ultrasound for thyroid cancer also is scheduled for Wednesday (8:30 a.m.-10:00 a.m., RC531, Room N227), while a hands-on workshop on musculoskeletal ultrasound will focus on peripheral nerves (8:30 a.m.-10:00 a.m., RC552, Room E264).

Ultrasound will be included in a pair of special interest/controversies/hot topics sessions on Wednesday afternoon, including the diagnosis and management controversies of multiple sclerosis (4:30 p.m.-6:00 p.m., SPSC43, Room E352) and ultrasound versus MRI for musculoskeletal radiology (4:30 p.m.-6:00 p.m., SPSC44, Room S404CD).

Early risers on Thursday, December 1, will be able to compare ultrasound and CT for thyroid carcinoma (7:15 a.m.-8:15 a.m., SPSC50, Room E351). Ultrasound will also be covered in a Thursday pediatric emergency imaging course (8:30 a.m.-10:00 a.m., RC608, Room N226), as well as for pediatric musculoskeletal imaging (8:30 a.m.-10:00 a.m., RC613, Room S102AB).

An ultrasound in oncology interactive session is scheduled for Thursday morning (8:30 a.m.-10:00 a.m., RC618, Room S405AB), as is a small-parts interventional ultrasound workshop (8:30 a.m.-10:00 a.m., RC631, Room E263) and a Doppler ultrasound interactive session (8:30 a.m.-10:00 a.m., RC610, Room E353C). Thursday afternoon topics range from MR elastography and quantitative ultrasound elastography (3:00 p.m.-4:00 p.m., SPSH51, Room E351) to Doppler ultrasound (4:30 p.m.-6:00 p.m., RC710, Room E450B), breast ultrasound (4:30 p.m.-6:00 p.m., RC715, Room E451B), and visceral and carotid applications of Doppler ultrasound (4:30 p.m.-6:00 p.m., RC752, Room E264).

Courses to choose from on Friday, December 2, include ultrasound diagnosis of adnexal cystic masses (8:30 a.m.-10:00 a.m., RC810, Room E350), pediatric gastrointestinal imaging (8:30 a.m.-10:00 a.m., RC813, Room S102AB), and a real-time interventional ultrasound workshop (8:30 a.m.-10:00 a.m., RC852, Room E264).

Scientific and Educational Presentations
In vivo compression improves thyroid elastography results
Sunday, November 27 | 10:55 a.m.-11:05 a.m. | SSA21-02 | Room S504AB
In this Sunday scientific presentation, researchers will share how in vivo compression can improve interobserver agreement and intraobserver reproducibility in thyroid elastography.
Study determines rate, causes of failure for US tracking of HCC
Sunday, November 27 | 11:15 a.m.-11:25 a.m. | SSA06-04 | Room E353A
This scientific session will review a study from the University of Toronto that analyzed ultrasound surveillance for hepatocellular carcinoma (HCC).
Ultrasound-guided procedure provides better outcome in epitrochleitis
Sunday, November 27 | 11:15 a.m.-11:25 a.m. | SSA13-04 | Room E451A
An Italian team has found that an ultrasound-guided combined procedure can provide faster and longer-lasting pain relief in patients with epitrochleitis.
Adding strain ratio fails to improve thyroid elastography
Sunday, November 27 | 11:25 a.m.-11:35 a.m. | SSA21-05 | Room S504AB
In this scientific session, a South Korean team will explain how incorporating strain ratio into thyroid elastography did not yield better clinical performance.
3D/4D prenatal ultrasound raises potential bioeffects concerns
Sunday, November 27 | 11:25 a.m.-11:35 a.m. | SSA09-05 | Room E351
A researcher from the Affiliated Hospital of Hebei University in China has found that dynamic 3D ultrasound scanning can induce abnormal morphological changes and apoptosis in the brains of fetal mice.
CEUS perfusion imaging boosts prostate cancer detection
Sunday, November 27 | 11:35 a.m.-11:45 a.m. | SSA21-06 | Room S504AB
A contrast-enhanced ultrasound (CEUS) perfusion imaging technique could improve lesion detection in prostate peripheral zone tissue, according to a research initiative led by a contrast developer.
US-guided platelet gel treatment useful in supraspinatus tendinosis
Sunday, November 27 | 11:35 a.m.-11:45 a.m. | SSA13-06 | Room E451A
In this Sunday morning scientific session, an Italian team will report on promising results from ultrasound-guided delivery of autologous platelet gel for treating supraspinatus tendinosis.
CEUS shows promise for detecting secondary lymph nodes
Sunday, November 27 | 11:35 a.m.-11:45 a.m. | SSA12-06 | Room S504CD
Can contrast-enhanced ultrasound (CEUS) be used to localize secondary lymph nodes? Results from an animal study at Thomas Jefferson University suggest that it can.
US-guided injection treats shoulder muscle patterning instability
Sunday, November 27 | 11:45 a.m.-11:55 a.m. | SSA13-07 | Room E451A
In this scientific paper presentation, a U.K. team will describe results from using an ultrasound-guided botulinum toxin injection to treat muscle patterning instability in shoulders.
CEUS helps detect renal cell carcinoma
Sunday, November 27 | 11:55 a.m.-12:05 p.m. | SSA10-08 | Room E353B
Contrast-enhanced ultrasound (CEUS) can differentiate between benign and malignant renal masses, according to this study from a Canadian research team.
New ultrasound CAD scheme achieves high accuracy
Sunday, November 27 | 12:05 p.m.-12:15 p.m. | SSA21-09 | Room S504AB
In this scientific session, a Japanese research team will discuss its computer-aided detection (CAD) scheme, which is based on histologic classifications of breast ultrasound images.
Pelvic US not needed after negative abdominal, pelvic CT in ER
Monday, November 28 | 10:00 a.m.-10:10 a.m. | MSVE21-06 | Room E353A
Pelvic ultrasound following negative abdominal and pelvic CT exams failed to add diagnostic value in the acute care setting in a study at Beth Israel Deaconess Medical Center in Massachusetts.
Nonvisualized appendix represents low risk for appendicitis
Monday, November 28 | 10:10 a.m.-10:20 a.m. | MSVE21-07 | Room E353A
There's a very small chance of appendicitis in cases where the appendix can't be viewed on ultrasound, according to a study from the University of Western Ontario.
Compact ultrasound offers best value for low-resource settings
Tuesday, November 29 | 11:00 a.m.-11:10 a.m. | SSG06-04 | Room S102D
This paper presentation will discuss a study that compared the performance of conventional cart-based ultrasound with that of compact ultrasound for facilities with limited access to healthcare resources.
Ultrasound can detect intrathyroid parathyroid adenomas
Tuesday, November 29 | 11:10 a.m.-11:20 a.m. | SSG10-05 | Room N229
In this scientific paper presentation, researchers will share data confirming ultrasound's ability to identify intrathyroid parathyroid adenomas.
Real-time elastography with in vivo compression performs well
Tuesday, November 29 | 11:20 a.m.-11:30 a.m. | SSG10-06 | Room N229
In this Tuesday scientific session, a team from the University of Washington will discuss results from using in vivo compression in real-time thyroid elastography.
Duplex Doppler ultrasound can evaluate pancreas transplants
Tuesday, November 29 | 3:50 p.m.-4:00 p.m. | SSJ07-06 | Room E353C
Researchers in New Orleans have concluded that duplex Doppler ultrasound is a useful tool for monitoring pancreatic allografts.
US elastography shows promise for lateral epicondylitis
Tuesday, November 29 | 3:50 p.m.-4:00 p.m. | SSJ14-06 | Room E451A
A South Korean research team has found that quantitative strain measurements from ultrasound elastography may be helpful in evaluating lateral epicondylitis.
Ultrasound aids imaging of pediatric pneumonia
Tuesday, November 29 | 4:10 p.m.-4:20 p.m. | MSVP32-07 | Room S102AB
Ultrasound is a useful imaging modality for evaluating childhood pneumonia, a German team has concluded.
Ultrasound and Alvarado score may stratify pediatric appendicitis risk
Wednesday, November 30 | 10:50 a.m.-11:00 a.m. | SSK14-03 | Room S102AB
In this presentation, researchers will describe how the combination of focused appendicitis ultrasound and Alvarado score may help diagnose pediatric appendicitis.
Stenosis index bolsters US evaluation of hepatic allografts
Wednesday, November 30 | 3:40 p.m.-3:50 p.m. | SSM06-05 | Room E350
In this Wednesday afternoon session, a University of Washington team will highlight the benefits of a stenosis index for assessing arterial stenosis in hepatic allografts.
US insufficient to evaluate hepatic steatosis in obese adolescents
Thursday, December 1 | 10:30 a.m.-10:40 a.m. | SSQ15-01 | Room S102D
A Dutch team has found that while ultrasound has good sensitivity and specificity for finding hepatic steatosis in obese adolescents, it does not have acceptable positive post-test probability.
Shear-wave elastography shows promise in liver fibrosis
Thursday, December 1 | 11:10 a.m.-11:20 a.m. | SSQ03-05 | Room E353A
An Italian team believes that real-time shear-wave elastography can improve upon the limitations of transient elastography in detecting liver fibrosis.
US may find soft-tissue abnormalities after hip arthroplasty
Thursday, December 1 | 11:30 a.m.-11:40 a.m. | SSQ11-07 | Room E451A
In this scientific session, a Japanese research team will present how ultrasound screening can detect periarticular soft-tissue abnormalities after total hip arthroplasty.
Real-time tissue elastography helps assess intratesticular lesions
Friday, December 2 | 11:20 a.m.-11:30 a.m. | SST08-06 | Room E351
In this Friday session, a U.K. team will show how real-time tissue elastography can increase operator confidence and influence patient management for evaluating intratesticular lesions.
Ultrasound can detect inflammation in Crohn's disease patients
Friday, December 2 | 11:40 a.m.-11:50 a.m. | SST06-08 | Room E353C
Transabdominal ultrasound can effectively diagnose and detect inflammatory activity in patients with Crohn's disease, according to a research group in Canada.

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