Radiologists should not only take their patients' history but perhaps also record their future travel plans. Apparently, individuals undergoing diagnostic or therapeutic nuclear medicine procedures can trip radiation detectors designed to catch terrorists smuggling radioactive material.
In a move that points to anticipated growth, Xoran Technologies has cut a deal with Varian Medical Systems to receive flat-panel x-ray detectors. Varian will supply its PaxScan amorphous silicon flat-panel detector for use with Xoran’s MiniCAT CT scanner. The product was developed for use by ear, nose, and throat specialists.
This week, the Bowers Museum in Santa Ana, CA, will open an exhibition featuring six mummies, each one thousands of years old. Their lives and deaths will be annotated, in part, with information gathered using a 16-slice CT scanner.
The growth of cardiac imaging represents perhaps the heaviest impact of CT on diagnostic imaging. Hospital information technology infrastructures are the first to feel the weight.
Planar’s Dashboard hits the roadMedical displays are proliferating, appearing not just in radiology but in far-flung corners of hospitals and physician offices. To help PACS administrators manage those displays, Planar has developed the Dome Dashboard software console. This console, which is now commercially available, simplifies the centralized management, monitoring, and control of medical imaging displays. Dashboard alerts administrators when a display slips out of alignment, such as a change in the white level or drop in DICOM calibration conformance.
Barco is stepping up efforts to make soft-copy solutions a vital tool in gastrointestinal exams. U.S. regulatory authorities this month cleared the company’s colonography software application for distribution to the potentially sizable screening market.
It’s funny how words lend themselves to different meanings. Change the spelling and the word “aisle” becomes its homonym, “I’ll.” Change a letter or two and being unseemly (fat) becomes appealing (phat).
Boosted by the introduction of multislice machines, CT has been steadily overtaking other imaging modalities in visualizing the chest. CT is far more specific than chest radiography and faster and more global than nuclear medicine scanning. Although MR imaging is more sensitive to differences in fat and soft-tissue contrast and provides more precise demarcations of tissue planes, it doesn't return much signal from pulmonary parenchyma.
The Society of Nuclear Medicine recently added the tagline "advancing molecular imaging" to its logo. Now it has developed a center of molecular imaging to disseminate information and promote research in the rapidly advancing field.
The American College of Radiology Imaging Network has begun enrollment nationwide for its national CT colonography trial. The study should resolve ongoing debate over the efficacy of virtual colonoscopy for cancer screening.
It’s a shame, but GE Healthcare is the only imaging company doing direct-to-consumer marketing. There should be more of it.
Orex joins KodakThe acquisition of computed radiography manufacturer Orex is complete. Eastman Kodak paid $51.3 million in cash for the maker of specialty CR systems. The final price may yet be adjusted, depending on a final audit. With the deal now final, Orex becomes a wholly owned subsidiary of Kodak, joining Kodak’s Health Group, though it will continue to operate out of Yokneam, Israel. The company’s small-format CR products address market niches involving orthopedics, imaging centers, and dentistry. Orex CRs, as well as some from Kodak, are also used by industrial nondestructive testing groups, such as pipeline companies, foundries, and aerospace manufacturers.
Nuclear medicine physicians should take not only a patient’s history, but also his or her “future.” Patients who travel after a diagnostic or therapeutic nuclear medicine procedure can accidentally trip alarms designed to catch terrorists smuggling radioactive material.
Hitachi is hoping for a comeback in the world’s premier market for CT. The company, which for many years supplied CT scanners under the Philips Medical System label, has launched its own brand, the quadslice CXR4. It is the first in what will become a family of products with varying capabilities, extending ultimately to the highest levels of performance.
The majority of patients who undergo CT colonography, either with or without contrast, will produce studies that have at least one extracolonic anomaly. Most will not require further workup, however.
Precise evaluation of cardiac and thoracic anatomy is mandatory for planning safe minimally invasive direct coronary artery bypass. Three-D images obtained with CT angiography can help avoid surgical complications, minimize the need to switch to the standard surgical approach, and help determine the best surgical access.
The majority of patients who undergo CT colonography, either with or without contrast, will produce studies that have at least one extracolonic anomaly. Most will not require further workup, however.
Radiation exposure has been a dicey issue for researchers developing multislice CT coronary artery imaging. According to critics, MSCT exposes patients to twice as much ionizing radiation as conventional cardiac catheterization.
Mercury Computer Systems has emerged from the shadows of medical imaging with a portfolio of advanced processing products and services. The company, which previously served mostly as a supplier of 2D imaging components to major OEMs, has begun shopping 3D and 4D products around the imaging industry. These products vary from software only to software-hardware combinations and are designed to perform critical functions in diagnostic and interventional products, as well as PACS.
A study of whole-body MR and CT as possible alternatives to planar nuclear medicine bone scanning has found that whole-body MRI depicts spinal bone metastases that escape detection with 16-slice CT.
Nuclear medicine physicians have suspected since the advent of PET/CT that the hybrid technology would outperform PET or CT for staging cancer. Those suspicions were confirmed Tuesday by a study of 260 patients at the University of Essen, Germany, which showed that PET/CT is substantially more accurate for staging carcinoma than PET or CT alone and PET and CT viewed side by side.
Precise evaluation of cardiac and thoracic anatomy is mandatory for planning safe minimally invasive direct coronary artery bypass. Three-D images obtained with CT angiography can help avoid surgical complications, minimize the need to switch to the standard surgical approach, and help determine the best surgical access.
Hormone replacement therapy is known to carry a risk of cardiovascular events. Researchers in China, however, have found that women taking HRT have significantly lower coronary calcium scores and significantly less coronary artery stenosis. They recommend cutting the standard HRT dosage by half so women can retain the positive benefits against osteoporosis, as well as reduce the risk for coronary heart disease.
Coronary CT angiography has proven to be a boon to radiologists and cardiologists in private practice. With a high negative predictive value, it can easily rule out coronary artery disease in patients with nondiagnostic electrocardiograms. For cardiologists in particular, CTA can help offset declining reimbursements associated with catheter procedures and nuclear medicine tests. But some cardiologists resist.
Being a specialist in cardiovascular imaging, I have followed the development of cardiac topics at the ECR since 1991. Tremendous changes have occurred over this period.
