David Eric Magarik MD
Radiologist | Diagnostic Radiology1840 Amherst St Winchester VA, 22601
Dr. David Magarik is a radiologist practicing in Winchester, VA. Dr. Magarik specializes in diagnosing and treating injuries and diseases using medical imaging techniques such as X-Rays, magnetic resonance imaging and computed tomography exams. These techniques offer accurate visibility to the inside of the patients body and help to detect otherwise hidden illnesses so that they can be treated quickly and efficiently.
Education and Training
Washington Univ Sch Of Med- St Louis Mo 1976
Washington Center / School of Medicine 1976
Washington University in St. Louis School of Medicine 1976
RadiologyAmerican Board of RadiologyABR
David Eric Magarik MD's Expert Contributions
Intravenous contrast clears in less than a day and much quicker if one drinks excessive fluids after the exam. Oral contrast usually by bowel activity, but fluids help. READ MORE
Yes. Usually presents as a fluid level within one or more paranasal sinuses. This, in conjunction with patient symptoms, makes the diagnosis. READ MORE
Pneumonia causes influx of inflammatory fluids which is a different radiographic density than air, so it can be detected. READ MORE
Yes. READ MORE
It shows anatomy but can be nonspecific in the absence of oral or intravenous contrast, so I don’t recommend them. READ MORE
You do not need it. Often results in nonspecific findings and causes unnecessary patient concern. There are more important things to concern oneself with, such as how to combat global climate change, etc. READ MORE
My son has been having bad headaches. His neurologist is sending him to a radiologist. What can we expect next?
If he's having contract enhanced CT, then the exam will be quick including the injection of an Iodine based compound. If he is having an MRI, then it will take much longer with body and head in tunnel if a closed bore magnet. There will be fairly constant knocking noise but headphones will be provided. There may be Gadolinium based contrast, which will extend the exam. Usually 30-45 min. Hopefully, there will be nothing found other than normal brain matter. READ MORE
While MRI is better for its great soft tissue contrast and multi-sequences providing significant additional information, CT is much better for the thorax, especially the lungs due to its high spatial resolution. It is perfect for evaluation of nodules and masses and pneumonia. MRI is more of a problem solver and is useful for the heart, aorta and great vessels. CT is very quick, even if contrast is used. The downside is radiation exposure which one does not get with MRI. This is X-ray exposure is nominal in the broad scheme of things. READ MORE
Usually for cancer workups to stage the extent of disease. Also useful for inflammatory diseases and infections. READ MORE
Yes indeed. Usually we start with CT as it quick and also very useful. CT in the abdomen is our workhorse. READ MORE
Yes. It is usually employed in conjunction with Chemotherapy (referred to as neo- adjuvant if given prior to surgery). READ MORE
The chest X-ray is the first line in diagnosis and it will provide a baseline to assess progression of disease or resolution as CT is expensive, uses contrast and results in excess radiation exposure if not used judiciously. Also, certain findings such as pneumothorax on a chest X-ray may obviate the need for CT. READ MORE
Stroke without hemorrhage is often detected on CT but may required a time interval from the onset of stroke symptoms. It is very useful. A negative exam does not rule out a stroke, which is a clinical diagnosis. If negative, then we go to MRI, which has properties that make it exquisitely sensitive to stroke and its etiologies. READ MORE
CT is X-ray based relying on attenuation differences of brain tissues including the gray and white matter and adjacent structures including the skull, facial bones and sinuses. It is fairly easy to detect hemorrhage when it is significant, whereas MRI provides much greater detail and tissue type resolution. It can be more sensitive to the presence of blood in the brain or around the brain. It gives much better anatomic detail and time related changes after events in the brain. It is the closest thing we have to great anatomic detail short of an autopsy. READ MORE
Yes, but it depends on what body part is being studied. If the question is appendicitis, then ultrasound should be performed first as there is no radiation exposure. This is true for many other conditions as well. READ MORE
Yes, I perform numerous breast biopsies each week either using stereotactic device which is X-ray based, usually for calcifications, and ultrasound guided for solid and cystic lesions. In general, in 2018, we perform the biopsy prior to surgery so that surgery may not be necessary based on the biopsy result. There are certain lesions where surgery is the first course, but these are rare. READ MORE
You would need an IV if gadolinium based contrast is to be used. Don't be scared. There are much worse procedures in medicine and events in life so consider the IV a minor inconvenience. You will be proud of yourself for being brave! READ MORE
Excess body tissue can adversely affect the quality of bone studies, but often it is related to motion artifact. READ MORE
Yes. Ultrasound is my favored study for the abdomen if performed well and can detect many masses. It can rule out abnormalities to set your mind at ease. Hopefully they find nothing. Symptoms then may abate when you are reassured that there is nothing. That is a big part of medicinal practice. READ MORE
Xray exposure can have a cumulative effect. People who live in Denver get twice the exposure of those in NYC at sea level. It is three times as high for those in Leadville, Colorado due to elevation. Pilots and those fly a lot get a higher dose but not for a long exposure. Try to minimize the number of exams if possible. READ MORE
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Patient Experience with Dr. Magarik
- Everything You Need to Know About Biopsy Procedures
What is a biopsy?A biopsy is a medical procedure, which is mostly used in diagnosing cancer. In this procedure, a small tissue sample is taken from your body for a closer examination under the microscope. A biopsy is usually recommended by your doctor if initial tests in your body suggest an...
- What to Expect After a Biopsy
Biopsies may vary differently depending on the type and location of the tissues and how hard are they to obtain. The medical term used to describe such method is “invasiveness.” A less invasive procedure will, for example, take place in a doctor’s office the same day an abnormal tissue is...
- What is Compartment Syndrome?
Compartment syndrome refers to the excessive buildup of pressure within the muscle compartments of the body. This will affect the functioning of the nerves and lead to cell death based on the intensity and duration of the pressure built up. Bleeding and inflammation after an injury usually leads to...
- Reasons Why You Need a Biopsy
OverviewA biopsy is a procedure that involves the removal of a sample tissue in the body to examine it closely under a microscope. The tissue is mainly examined to diagnose a certain disease. Some may use a needle or surgical methods to remove any lumps or suspicious nodules in the body. Some...
- How to Prepare for a Biopsy
A biopsy procedure is a very important procedure, which is used to identify the underlying cause of your abnormal body tissues. Depending on your condition and the location of the tissue abnormality, different types of biopsies may be performed on you. A biopsy preparation, therefore, depends on...
- What Is an X-Ray?
An X-ray is a type of electromagnetic radiation, which can be used to take digital images of parts of the human body. It is the same with visible light but has a certain different characteristic. The beneficial use of an X-ray is for medical imaging. It can help the physician to look inside your...
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