How does it work?
CT scan is an x-ray that produces computer images of a particular
body part and helps diagnose conditions a regular X-Ray cannot
or previously required exploratory surgery. During a CT scan the
patient lies on the table while an X-ray tube rotates around the
body. A computer program is than used to project images on a monitor.
The images which show a cross-section of body tissues and organs
are then studied by the radiologist.
What will I have to do?
During the exam the patient will be asked to lie still on the
examination table. In many cases it is not even necessary for
the patients to undress. For certain procedures the technician
may ask you to hold your breath. If you require a contrast injection
the process will be explained to you and any questions you may
have will be answered.
one of the first outpatient facilities in Manhattan to install
the latest generation of multi slice CT scanners, we have the
experience as well as the technology to achieve the highest quality
noninvasive imaging of the coronary arteries.
Coronary CTA is becoming part of standard screening evaluations
in high risk patients. The ability to visualize the vessel wall
as well as the vessel lumen represents a unique advantage of CTA
over conventional catheter angiography. Moreover, CT angiography
has no risk of stroke, acute MI or other morbidities of catheter
The new multidetector CT scanner maximizes the sensitivity for
small lesions due to its volumetric image acquisition with near
isotropic imaging; due to the high number of detectors, image
resolution is nearly identical in all 3 dimensions. This represents
a significant advance over helical single detector or older multidetector
units. Studies are evaluated on a dedicated 3D workstation with
proprietary vessel imaging software, providing a virtual image
of the arteries similar to what a surgeon would see during a bypass.
The examination is performed in less than 10 minutes and does
not require sedation. After placing ECG leads on the chest an
initial scan is performed to assess for calcification in the coronary
arteries. Then a standard intravenous injection is performed.
In those patients with an elevated resting heart rate, a beta
blocker may be prescribed to bring the heart rate below 80 beats
per minute. The scan itself requires approximately 10 seconds
for image acquisition.
Park Avenue Radiologists offers virtual colonscopy on our state
of the art multislice Siemens Sensation CT unit.
CT colonoscopy has an established role in screening for colon
carcinoma, recommended for all patients over age 50. Patients
no longer need to undergo the discomfort of a barium enema or
undergo invasive procedures for mere screening. Our new scanner
maximizes the sensitivity for small lesions due to its volumetric
image acquisition with near isotropic imaging; due to the high
number of detectors image resolution is nearly identical in all
3 dimensions. This represents a significant advance over helical
single detector or older multidetector units. Studies are evaluated
on a dedicated workstation with 3d ‘fly through’ imaging
software, providing a virtual image of the colon similar to what
gastroenterologists see at colonoscopy.
The examination is performed in less than 5 minutes without need
for injection or other invasive procedure. Patients need to follow
the simple bowel preparation and air is insufflated; the scan
itself takes 8-10 seconds and is performed in a single breath
Prior to implant surgery a Dental Scan is required to plan for placement of
the implants and determine bone quality.
Park Avenue Radiologists, PC performs CT Dental Scans on our
16 multi-slice CT scanner. The procedure is simple, takes only
a few minutes, has minimal radiation exposure and requires no
preparation by the patient.
CT Images of the mandible (lower jaw) and/or maxilla (upper
jaw) are taken. The data derived from the scan is then reformatted
using specialized software (Simplant). Measurements of each tooth
and an analysis of surrounding tissue and bone quality are provided.
These images and measurements assist dentists and oral surgeons
with planning placement of implants prior to surgery.
Dental Scans are generally not covered by medical insurance
companies and Park Avenue Radiologists does not participate in
dental plans. However, in some cases reimbursement is made directly
to patients. We will provide you with a receipt in order that
you may file a claim with your carrier.
If you would like additional information on these procedures we
recommend visiting the Computed Tomography (CT or CAT) section