Authors


Anand K. Singh, MD

Latest:

Multislice CT and CAD bring new efficiencies to diagnosis

Computer-aided detection is gradually gaining acceptance in radiology and has become a major research focus in the past few years. The development of CAD with multislice CT has reached the point where, together, they have the potential to offer new capabilities in the interpretation of emergency room scans.


Anand S. Patel, MD

Latest:

Patient Portals: 3 Ways to Engage Your Patients

Patient portals are an innovative and beneficial way for radiologists to communicate; you just have to use them.


And Eric P. Krenning, M.D.

Latest:

Molecular imaging shows enormous clinical potential

It is not difficult to find resources on the topic of molecular imaging. A number of comprehensive review articles have been published1-5 and dedicated websites created (e.g., www.mi-central.org/). What follows is an introduction to this emerging area with radiologists' needs in mind.


Anders Persson, MD, PhD

Latest:

Virtual autopsies guide postmortem investigation

Physician Rudolf Virchow introduced microscopic examination to classic pathology about midway through the 19th century. This helped to establish modern pathology. Although autopsies are now recognized as valuable medical procedures, the core methodology has not changed for many years.


Andre Hartung

Latest:

Siemens' dual- and singlesource CTs reflect history

With patients' well-being in focus and dose reduction as a top priority, Siemens over the past three decades has introduced innovations in the way CT operates and how it is used.


Andrea Laghi, MD

Latest:

MR imaging strides ahead in rectal cancer staging

In rectal cancer, mortality rates are high and prognoses are generally poor, owing to the strong risk of metastases and local recurrence.


Andrea Rockall, MBBS

Latest:

Ovarian lesions pose diagnostic dilemmas

The main objective of imaging patients with symptoms suggestive of ovarian lesions is to distinguish benign findings from malignant disease. Masses can be characterized with a variety of noninvasive imaging techniques, including transabdominal and transvaginal ultrasound, CT, and MRI. Each of these modalities has its advantages and limitations.



Andreas H. Mahnken, MD

Latest:

Dual-source technology extends CT applications

CT is one of the most important of the noninvasive imaging modalities, providing 3D representations of the x-ray attenuation coefficient with submillimeter spatial resolution.


Andrew Allmendinger, DO

Latest:

Bilateral brachymetapody

This 41-year-old woman presented with a known history of bilateral foot deformities and new complaints of bilateral foot pain. She had associated hallux valgus deformities.


Andrew J. Dwyer, MD

Latest:

Dynamic contrast-enhanced MR imaging finally comes of age

Tumors require new blood vessels in order to grow beyond a few millimeters in size. Once this "angiogenic switch" is thrown, a series of events occur that lead to the progression and spread of cancer. The vessels formed by tumors are not only larger and more numerous but also more permeable than normal vessels1 (Figure 1). Thus, when a patient with a tumor is injected with a gadolinium-chelate MR contrast agent, the tumor enhances more than the surrounding normal tissue.


Andrew Kennedy, MD

Latest:

Targeted therapies gain groundon hard-to-treat liver tumors

Not long ago, our approach to treating difficultmetastatic tumors was to "spray and pray." Weknew that chemotherapy and other traditionaltreatment approaches could cause great damageand had a limited chance of successfully destroyingthe entire tumor.



Andrzej Cieszanowski, MD, PhD

Latest:

MR imaging ensures clarity in focal liver lesions

Most benign lesions considered unspecific on ultrasound or CT can be identified with great confidence on MRI


Anja Kettunen, PhD

Latest:

Dose reduction measures benefit pediatric patients

Balancing the benefits of a procedure involving ionizing radiation against the possibility of unwanted damage is often difficult. Regulations on exposure must consider medical, economic, and ethical aspects of radiation as well as the individual and collective dose of the population.


Anju Sahdev, MBBS

Latest:

Ovarian lesions pose diagnostic dilemmas

The main objective of imaging patients with symptoms suggestive of ovarian lesions is to distinguish benign findings from malignant disease. Masses can be characterized with a variety of noninvasive imaging techniques, including transabdominal and transvaginal ultrasound, CT, and MRI. Each of these modalities has its advantages and limitations.



Anne Cotten, MD

Latest:

MRI, ultrasound offer hope to arthritis patients

MRI and ultrasound can be useful tools in evaluating patients with early rheumatoid arthritis. Both techniques can detect pre-erosive synovial inflammation. They can also identify early bone damage before it becomes apparent on x-rays.


Anne Elliot

Latest:

This is just a test

This is where the lede would go if this were a real story.


Anne Grethe Jurik, MD

Latest:

MR imaging adds weight to sacroiliitis diagnosis

Early diagnosis of rheumatoid arthritis and monitoring of the disease during therapy have attracted considerable interest over the past decade. Imaging studies of seronegative spondyloarthropathies, however, are few and far between, even though these disorders occur as frequently as rheumatoid arthritis. Now the potential promise of biological therapy to treat ankylosing spondylitis, one of the most disabling seronegative spondyloarthropathies, is focusing attention on techniques capable of detecting the disease early and tracking its progress through treatment.


Anne Tardivon, MD

Latest:

Real-time elasticity findingsimprove breast specificity

Ultrasound has long been an efficient and usefuladjunct technique for breast imaging. It is thefirst modality to be proposed in some situations:if a young or pregnant woman has a palpablemass, for example, or immediately after surgery.


Annet Waaijer, MD

Latest:

40-slice scanners boost neuro CT angiography

The introduction of 40-slice CT scanners has opened up new possibilities for CT angiography of the supra-aortal vasculature. Imaging can be performed with even thinner slices, and more rapidly, than on 16-slice systems, and images have higher resolution. Conventional protocols for imaging the brain and its arterial supply must be adjusted to profit from these parameters.


Annick C. Weustink, MD

Latest:

Reliable In-Stent Lumen Visualization With Dual Source CT Coronary Angiography

A 58-year-old man with a history of hypertension and hypercholesterolemia was admitted to the hospital with symptoms of suspected stable angina pectoris. The patient was referred to conventional coronary angiography after a positive exercise-ECG test. Conventional angiography showed significant stenoses at the level of the proximal right coronary artery (RCA) and the proximal left anterior descending coronary artery (LAD). Percutaneous intervention was undertaken and one bare-metal stent in the RCA and two overlapping bare-metal stents in the LAD were successfully implanted. The patient was referred to follow-up CT coronary angiography after 18 months.


Anno Graser, MD

Latest:

MSCT assists in renal cell cancer workup

Renal cell cancer is the most frequently encountered malignant tumor in the kidney. Over 30,000 new cases are diagnosed annually in the U.S. Many cases are now detected incidentally, as a result of the widespread use of multislice CT. MSCT usage is also redefining diagnostic workup of renal lesions and facilitating renal cell cancer staging.


Anselmo Alessandro Palumbo, MD

Latest:

64-slice CT monitors coronary artery health

State-of-the-art scanners enable noninvasive assessment of bypass grafts and native vasculature for patency and arterial disease


Anthony Disher, MD

Latest:

An Impressive Case of Procidentia with Concomitant Cystocele and Hydronephrosis

Clinical History: A 45 year old African-American nulligravida female presented to the emergency department complaining of 8/10 nonradiating pain deep within her vagina.


Antonio Aguiar, MD

Latest:

Radiology's role grows in schistosomiasis mansoni

Most infected individuals remain asymptomatic carriers, but hepatosplenic form of schistosomiasis can be associated with serious complications


Antonio Saiz Ayala, MD

Latest:

MRS, perfusion MRI separate radiation necrosis from tumor

Radiation plays an important role in the treatmentof primary and secondary centralnervous system neoplasms.


Aparna Balachandran, MD

Latest:

Three-D techniques showcase the pancreas and biliary

The advent of multislice CT, advanced computer workstations, and 3D and postprocessing algorithms has allowed for new perspectives from which to view imaging data. These are especially useful for pancreatic cancer and biliary pathology.


Arash R. Zandieh, MD

Latest:

Image IQ: 34-year-old Male, Worsening Numbness and Weakness

34-year-old male presented with worsening numbness and increasing weakness in right hand, progressing to proximal right upper extremity.

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