Radiology & Imaging Articles

Jul 272013
 
How to ration lung cancer screening CTs, rationally

Restrict Lung Cancer Screening CT To Highest-Risk People? The National Lung Screening Trial showed that 3 annual low-dose chest CT scans in people with heavy smoking histories (30+ pack-years) saved lives, reducing the risk of death from lung cancer by a relative 20% compared to screening with annual chest X-rays. With 160,000 lung cancer deaths [… read more]

Jun 162013
 
Ultrasound in the ICU: Hypotension after a cholecystectomy (Case 1)

Ultrasound Case 1 Hypotension after a Cholecystectomy: Why? From Philippe Rola and the Critical Care & Ultrasound Institute, the first in a series of educational ultrasound cases on PulmCCM: A 64 year-old male is admitted to the ICU from the surgical ward with hypotension, 3 days post-cholecystectomy. He is intubated for airway protection following loss [… read more]

Jun 072013
 
Managing anticoagulation for surgery and invasive procedures (Review)

Managing Anticoagulation Therapy For Surgery and Procedures See also: How to manage anticoagulation perioperatively (ACCP Guidelines) NOTE: Please read the Terms of Use before proceeding. If you are a patient, stop reading now; this site is for health care professionals only. If you are a health care professional, do not rely on this information as [… read more]

Jun 072013
 
How safe is EBUS? Complication rates <1% at experienced centers

image: Olympus EBUS Complication Rates <1% at Experienced Centers Endobronchial ultrasound (EBUS) — an ultrasound probe on the tip of a bronchoscope — allows real-time viewing of tissues beyond the bronchial wall. It enables more accurate and safer needle biopsies of lymph nodes and masses that abut the bronchial wall. EBUS is an exciting new [… read more]

Apr 172013
 
How dangerous are ground glass nodules over time?

image: Radiology Assistant Ground-Glass Nodules: If Growing, Assume Cancer Blair Westerly, MD The more CT scans that are performed, the more ground-glass opacities (GGO’s) are seen and what to do with these abnormalities can be difficult to ascertain for clinicians. With the National Lung Cancer Screening Trial showing a mortality benefit from low dose CT [… read more]

Apr 122013
 
Inferior vena cava filters: debatable benefit; rarely removed

image: Wikimedia Inferior Vena Cava Filters: What’s the Harm? Do inferior vena cava filters actually create more harm than health? That’s the provocative question being posed by authors and editorialists in JAMA Internal Medicine. Inferior vena cava filters are frequently placed after a pulmonary embolism (PE) or deep venous thrombosis (DVT) in patients with a [… read more]

Jan 292013
 
Forget "embolic burden" of pulmonary embolism: location is everything

In Most Patients with Pulmonary Embolism, Central Clot is Worse than Peripheral by Brett Ley, MD Pulmonary embolism (PE) presents with a wide range of clinical severity and course. Management decisions (level of care, length of observation, and aggressive therapies such as thrombolysis) are generally based on a patient’s risk of a poor outcome. Guidelines recommend risk [… read more]

Jan 022013
 
PET scans often inaccurate; may deny curative surgery for lung cancer

The use of positron emission tomography — better known as PET scans — has grown dramatically over the past 15 years, thanks to their seemingly magical ability to identify foci of undetected metastatic cancer. But PET scans’ perceived high accuracy in diagnosing metastatic non-small cell lung cancer (NSCLC) — a published 94% sensitivity and 83% [… read more]

Dec 282012
 
ACCP, ATS only weakly recommend lung cancer CT screening, warn of harms

The American College of Chest Physicians (ACCP) has issued its long-awaited recommendations on lung cancer screening with chest CT — and far from a ringing endorsement of screening, they are conservative and subdued, emphasizing the potential risks of an uncontrolled approach to lung cancer screening in the general population. The American Society of Clinical Oncology [… read more]

Dec 282012
 
American Lung Association recommends CT screening for lung cancer

The American Lung Association has become the largest advisory body to recommend lung cancer screening for high-risk people, advising nearly all people aged 55-74 with a 30+ pack-year smoking history (the entry criteria for the National Lung Screening Trial, or NLST) to undergo low-dose CT scanning to detect early lung cancer. The National Comprehensive Cancer Network, [… read more]

Nov 142012
 
New lung tissue growth can occur in adults, defying previous belief

New Lung Tissue Growth Discovered: Is Some Lung Regeneration Possible? Lung regeneration has never been thought possible in adults. But Steven Mentzer et al from Brigham and Women’s at Harvard reported a case of a 33 year old woman who had an apparent 64% increase in the number of functioning alveoli in her left lung, during [… read more]

Oct 192012
 
"Practice ischemia" on an arm reduces contrast nephropathy after procedures (RCT)

Contrast-induced nephropathy (kidney damage) is a serious problem that can occur after many medical tests and procedures, but coronary angiography (cardiac catheterization) is the main culprit. People with pre-existing renal disease are most susceptible to contrast-induced nephropathy (CIN) — about 1 in 8 of them develop a “bump” in creatinine of >0.5 mg/dL after cardiac [… read more]

Sep 302012
 
Treatment of Acute Deep Vein Thrombosis (DVT) of the Arm (Review/Guideline)

The content previously here was removed at the request of the American College of Chest Physicians. For the ACCP 9th edition clinical practice guidelines for prevention and treatment of venous thromboembolism (VTE), please visit the ACCP website. PulmCCM is not affiliated with ACCP or Chest.

Aug 172012
 
Advanced bronchoscopy yields are 70% in meta-analysis (Review)

(image: Wikipedia) As one after another specialty society endorses routine lung cancer screening with chest CT scans, we all know a Nodule Storm is coming to a pulmonology clinic near you. Thankfully, smart people are asking how we can systematically and successfully handle this soon-to-be-common outpatient clinical problem. Most of these many thousands of nodules [… read more]

Jul 102012
 
Sharpen your eye with these free online radiology tutorials

Pulmonologists become fairly good semi-professional chest radiologists simply by showing up, paying attention and working hard during their training, and making an effort to keep learning throughout their careers. We have the advantage over radiologists of actually being able to “clinically correlate” the findings with what’s really going on, and to integrate that into our understanding [… read more]

Apr 242012
 
How to make $25,000 on each EBUS

(image: flickrCC) Endobronchial ultrasound with transbronchial needle aspiration (EBUS-TBNA), when performed by skilled physicians, reduces the need for mediastinoscopy and unnecessary thoracotomies with their associated morbidity, and is poised to permanently alter the landscape of lung cancer diagnosis and staging. Prior to 2008, Medicare seemed to recognize the potential value of EBUS by paying hospitals [… read more]