Lowest Radiation Exposure. Highest Resolution. Greatest Comfort.

THREE MAJOR BENEFITS:
Howard Radiology’s 128-slice Siemens PERSPECTIVE CT
Lowest Radiation Exposure. Highest Resolution. Greatest Comfort.
Lowest Radiation Exposure
Like x-rays, CTs require radiation to produce images but the difference is in the amount of radiation.
Generally, one chest CT is equivalent to 700 chest x-rays. Howard Radiology’s new Siemens
PERSPECTIVE 128-slice CT has the capability to reduce radiation exposure up to 60% compared to
traditional CTs. Howard Radiology is the first out-patient in the United States to install a CT with this
new ground-breaking technology.
Radiation exposure varies according to the body part being scanned. Some commonly ordered CT exams are
charted below and demonstrate the radiation exposure differences between a CT at Howard Radiology and
traditional CTs. Millisievert (mSv), pronounced mil-e-see-vert, is the scientific unit used to measure the strength of
a radiation source. The chart below notes the CT mSv and its equivalency to chest x-rays.
Howard Radiology
Traditional Scanners
CT Exam
mSv
X-ray
Equivalence
mSv
X-ray
Equivalence
% of Less
Radiation Exposure
at Howard Radiology
Ab & Pelvis
11
1,100
20
2,000
45%
Chest
3.7
370
7
700
47%
Calcium Scoring
1.3
130
3
300
57%
Sinus
0.3
30
0.6
60
50%
The millisieverts, x-ray equivalences and percentages cited represent the average general output.
Amounts may vary based on the patient’s gender, size, weight and the CT equipment and protocols.
Howard Radiology’s measurements are in accordance with Siemens SOMOTOM PERSPECTIVE 128-slice
CT scan protocols and the traditional CT scanner’s measurements were defined by the American College
of Radiology.
2000
Howard Radiology's CT
How we do it…
Traditional CTs
X-ray Equivalence
Our new Siemens PERSPECTIVE
1100
700
128-slice CT uses a Siemens
exclusive innovation called
300
370
45%
SAFIRE. SAFIRE is a highly
60
less
47%
advanced software which
130
less
30
57%
involves a completely different
Ab
&
Pelvis
CT
method for obtaining CT
50%
Chest CT
images compared to older
Calcium Scoring
scanners, allowing up to 60%
Sinus CT
Sources: Siemen’s PERSPECTIVE 128-slice CT Scan Protocols and the American College of Radiology
less radiation exposure during
imaging. The Siemens
PERSPECITVE with the SAFIRE technology was FDA approved in June 2012.
Many CT scanners are represented as “Low Dose” due to utilizing radiation reduction initiatives like low dose
protocols, “dose modulation” techniques based on a scout or topogram that is relative to the patient's size, or
due to participating in “Image Gently” or “Image Wisely” programs. These are techniques that all CTs can do.
The SAFIRE technology is completely separate. The only way it can be duplicated is if a Siemens CT with the
SAFIRE technology is acquired.
CT: a life-saving exam
CT can be a life-saving exam and is often the premier test for certain situations. When a CT is needed, partnering
with Howard Radiology will guarantee the lowest radiation exposure possible for your patient.
Highest Resolution
At Howard Radiology, a grain of sand takes on new significance – it’s
the size anomaly detectable by our 128-slice CT Scanner! The higher
the slice number associated with the CT scanner, the better the
resolution and image quality capabilities. Specifically, this scanner
executes with 0.6 mm slices as the standard compared to lower-slice
scanners which routinely scan with 1.2 mm to 5 mm slices. The older
scanners can achieve the thinner slices but that usually requires more time
and more radiation.
• 16-slice was introduced in 2001
• 64-slice was introduced in 2003
• 128-slice was introduced in 2010
• 128-slice with new SAFIRE innovation – FDA approved June 2012
Greatest Comfort
Breath Holds
Howard Radiology
Others
The third major benefit to our new 128-slice CT is it’s speed.
Just as the higher slice number means the better the image
3 – 4 seconds
20 – 40 seconds
quality, the same is for the speed of a CT: the higher the slice
number, the quicker the scan time. Some CT scans require
patients to hold their breath, such as the very frequently ordered abdomen and pelvis CT. Breath holds are
required because any movement during the scan can blur the images, compromising the quality of those
images. This new scanner is very quick, allowing for 3 to 4 seconds breath holds instead of 20 to 40 second
breath holds. The best way to understand how this translates into greater patient comfort is to try it. Hold
your breath for 20 seconds, noting when 3 to 4 seconds has past but continuing to hold it until 20 seconds has
passed. Then, imagine having to hold it for 10 to 20 seconds beyond that – the differences are painfully
obvious!
THREE MAJOR BENEFITS: Howard Radiology’s 128-slice Siemens PERSPECTIVE CT
Lowest Radiation Exposure. Howard Radiology offers the lowest radiation exposure during CT imaging in an
out-patient setting in the United States (up to 60% lower)
Highest Resolution. Grain of sand size anomalies are detectable (0.6 mm slices compared to 1.2 mm – 5 mm)
Greatest Comfort. 3 – 4 seconds breath holds instead of 20 – 40 second breath holds
“You have a choice. Make it the best.”
Columbia Medical Center
11055 Little Patuxent Parkway, Suite L9
Columbia, MD 20144
T| 443-574-5800 F| 443-574-5822
3T MRI • 128-slice CT • Mammography • Ultrasound
DEXA • X-Ray • Open MRI (Clarksville Office)