Category Archives: Radiology

CT Chest ILD Protocol

Please note that the CT Chest ILD protocol is specifically to evaluate for and differentiate between different types of interstitial lung diseases and includes expiratory phase and prone imaging.  Usually this is on patients with known pulmonary fibrosis or longstanding shortness of breath.  Also this is usually ordered by pulmonologists on outpatients.  If a patient is acutely short of breath, has a lung nodule/mass, or in the hospital, usually a CT chest is the more appropriate order. This was previously named “High-Resolution Chest CT,” but the name was changed to better reflect it’s intended use.  All of our CTs are high resolution.

CHW Ultrasound and Nuclear Medicine Change in Hours

Starting August 9th, the hours of operations for CHW Ultrasound will be as follows:

General Ultrasound

Monday-Friday 6:30 am to 7:30 pm

Saturday 7:00 am to 3:30 pm

Sunday call only


Monday-Friday on-call from 7:30 pm to 6:30 am

Saturday after 3:30pm to Monday morning on-call


 Echo Ultrasound

Monday-Friday 6:30 am to 3:00pm

Monday-Friday on-call from 3:00 pm to 6:30 am**

Saturday and Sunday on-call only**

***Cardiologist approval needed for STAT call-ins***


For CHW Nuclear Medicine:

Nuclear Medicine

Monday-Friday 7:00 am to 4:00 pm


Monday-Friday on-call from 4:00pm to 7:00 pm

Saturday and Sunday call only 7:00am to 7:00pm


Any emergent Nuclear Medicine after hour exams will need to be sent to CHH or CHM.

Open house for Force CT scanner

Centegra Hospital-McHenry’s Medical Imaging Department invites you to join them for an Open House showcasing the new Force CT Scanner on Wednesday February 24th from 11:00am – 1:00pm. Appetizer, drinks, and dessert will be served.

Hepatobiliary with CCK shortage of drug

Due to drug manufacturing shortages as reported by the drug vendor, Bracco Diagnostic on May 21, 2014 scheduling of outpatient Hepatobiliary studies, with cholecystokinin (CCK), will be discontinue. . The drug, Kinevac, has no known alternatives, prompting this action. 

The Centralized Scheduling Department has been requested to retain a list of patients requiring this test. Once supplies become available, they will coordinate the scheduling of these patients.

Should you have any questions, please feel free to contact me at 815-759-4080.

– John Heinrich – Director, Medical Imaging – CHS

Illinois law now requires breast density notification

As of January 1, 2014, the state of Illinois will require health facilities that provide mammograms to notify women if they have dense breast in accordance with Senate Bill SB2314.  Illinois is one of at least 28 states that either are working on legislation or have already passed it.  Minor details of breast density legislation differ by state.  For example, Illinois is one of the only three states that currently mandate insurance reimbursement for supplemental screening exams for women with dense breasts. Continue reading

Low dose CT for lung cancer screening @ Centegra

Screening for lung cancer with low-dose CT (LDCT) is available at Centegra Health System!

Lung cancer continues to cause more deaths in the United States among men and women than breast, colorectal and prostate cancers combined

It was reported that in McHenry County, lung cancer is the leading cause of death among men and women ages 45–74 years of age.

The 2011 multicenter National Lung Screening Trial (NLST) demonstrated a 20 percent lung cancer specific mortality benefit in the LDCT screening group.

Centegra began a free LDCT lung cancer screening program for the benefit of your patients and our community in November 2013. To schedule CT lung screening, call 815-334-5566.

List of locations that offer LDCT.

Who should be screened?

  • Patients ages 55 to 74 with a 30 pack-year history of smoking. This includes people who still smoke or have quit within the past 15 years
  • Patients who meet criteria should be screened annually
  • Those who have symptoms of a lung condition at the time of screening, such as a new cough or shortness of breath, are not eligible.
  • If your patient is a candidate our navigator will contact you for an order.

To help you advise your patients, answer their questions and guide their follow-up care, I am enclosing selected articles of importance that have led to the current guidelines as well as a copy of the guidelines from the National Comprehensive Cancer Network (NCCN), which we are using in our program.

As the lung cancer screening process has only recently begun in earnest in this country and with recent endorsement for screening using LDCT by the US Preventative Services Task Force (USPSTF), I expect rapid evolution of guidelines in the near future as various other professional societies publish their opinions.

If you have any questions or comments about the LDCT lung cancer screening program at Centegra, please do not hesitate to contact John J. Guido, MD @ 815-759-4262.

Freedom from smoking classes are offered at several times throughout the year at Centegra Health Bridge Fitness Centers in Crystal Lake and Huntley as well as Centegra Hospital-McHenry. For more information or to register, call 877-CENTEGRA (877-236-8347).

Referral form for Low Dose Ct screening for Lung cancer


Emergency Premedication for Patients with History of Contrast Allergy

The ACR Manual on Contrast Media [1] recommends the following options for premedication in the acute setting in patients undergoing planned contrast enhanced imaging procedure (e.g. CT Pulmonary Angiogram). Options #1 or #2 should be used in all Emergency Department situations unless there is an extreme urgency.

IV steroids have not been shown to be effective when administered less than 4 to 6 hours prior to contrast injection

Emergency Premedication

In Decreasing Order of Desirability

  1. Methylprednisolone sodium succinate (Solu-Medrol®) 200 mg intravenously every 4 hours (q4h) until contrast study required plus diphenhydramine 50 mg IV 1 hour prior to contrast injection [35].
  2. Dexamethasone sodium sulfate (Decadron®) 7.5 mg or betamethasone 6.0 mg intravenously q4h until contrast study must be done in patent with known allergy to methylpred-nisolone, aspirin, or non-steroidal anti-inflammatory drugs, especially if asthmatic. Also diphenhydramine 50 mg IV 1hour prior to contrast injection.
  3. Omit steroids entirely and give diphenhydramine 50 mg IV.