16 Slice CT scanner

The 16 slice CT scanners have 16 rows of CT detectors inside the gantry to produce the images. By virtue of having 16 slices the scanner can cover a larger area in a single rotation around the patient body.

 

Advantages are

 

  • Lesser thickness of the body area scanned that is better in resolution compared to single slice.
  • It is faster in covering a specific area of the body & so total scan time is much shorter.
  • Because of speed , coverage and better slice resolution some of the CT scan applications do show better results.

CT Scan – sometimes called a CAT Scan – is short-form (acronym) for a Computerized Axial Tomography Scan. A CT Scan typically combines multiple rotating X-Rays along with hi-end computerized processing to produce a more detailed ‘picture’ of the inner structures of a body – including bones, tissues and organs. A CT Scan offers significantly greater detail and clarity as compared to a regular X-Ray (it’s a bit like looking inside a slice of bread, instead of an outer view of the entire loaf). A CT Scan is typically done on our spine, heart, head, chest, abdomen, abdomen and knee. During a CT Scan, the body is made to pass through a tunnel-like machine which rotates through a 360-degree arc as it takes X-Ray images in rapid succession. These images are subsequently fed into a computer to produce an ‘all-around’ 2D snapshot of any part of the body. A minimally invasive and painless procedure, a CT Scan can be done on any part of the body in little time. While essentially 2D in nature (ie, producing two-dimensional image slices), a CT Scan can also be employed to create 3D images.

 

CT Scan

 

A CT Scan is performed by a qualified radiology technician. The patient may be advised by the guiding medical professional or doctor to abstain from eating or drinking for a few hours before the procedure begins. When it is time for the Test, the patient will be required to lie on a table – usually on the back, though sometimes it may be sideways or face-down as well. The table then starts to make its way slowly inside a large and circular (donut-shaped) CT Machine that contains circling X-Ray beams within. As the body passes through the circle, the X-Ray beams capture a ring-like, cross-sectional image of the ‘slice’ of the body directly in its ‘gaze’ or range. After every ‘X-Ray shot’, the table (on which the patient is lying) will move a bit, enabling the machine to take the next ‘shot’. These shots are subsequently scanned and processed digitally to generate a series of 2D ‘slices’ of the body, each slice providing a detailed image of the bones, tissues, blood vessels and organs. The patient has to remain as still as possible during the scanning process to ensure ‘best results’. When the Scan is the operation, nobody is allowed to be present in the room – with the exception of the patient, of course. During the process, the patient can communicate with the radiologist professional who is conducting the Scan via intercom – and vice versa.

 

How Long Does a CT Scan Take?

 

A Simple CT Head (also known as NCCT Head or CT Brain) typically takes a few seconds inside a multislice CT Scanner and does not require much pre-preparation. More complicated investigations such as CECT Abdomen (CT Abdomen with Contrast) or CT Triple Phase Abdomen Phase Abdomen may take hours of pre-preparation including oral and IV contrast administration.

 

Instruction for CT Scan

 

  • If you are allergic to contrast, iodine, any medicine or eatables & pregnant notify to the technician before CT Scan.
  • If you have diabetes, heart disease, renal failure notify to the technician before CT Scan.
  • You can drink liquids such as non-carbonated water, juice, and black coffee or tea.
  • Please arrive 1 hour before your scheduled appointment time.
  • Patients who pick up their oral contrast in advance can arrive 30 minutes prior to an appointment time.
  • Please bring your all medical records like - Ultrasound, Blood tests, MRI, Previous CT, X-Ray and all medical records.
  • If you have had recent blood work, including a BUN/creatinine test done at an outside hospital within 3 weeks of your exam, please bring a copy of the results with you.
  • What to Expect To ensure your safety, a blood test may be required prior to an injection of CT contrast. We will review your medical record to determine if a blood test is required. If a blood test is required, we will draw a blood sample and wait for the results before proceeding with your CT scan.

 


CT PROCEDURES

CT Whole Abdomen


Pictures are taken of cross sections or slices of the abdominal structures in your body. The abdominal structures include your liver, kidneys, pancreas, spleen, GI tract, and the area around these organs. When contrast is used during a CT scan of the abdomen, these structures are highlighted even more.

CT scans can help determine a diagnosis early. Your doctor will use this information to determine the best treatment for you.

Patient needs to have 4 hours fasting before your CT examination.

Check in at Reception one (1) hour BEFORE appointment time. You may be given a liquid to drink (contrast media). This is why we have you arrive early. Your scan will take approximately 30 minutes. You may receive an injection of contrast if needed. Notify the technician if you are allergic to contrast, iodine, any medicine or eatables & pregnant. You may be asked to fill out a questionnaire and consent form for injection. Empty your bladder before your test unless told otherwise. Everything will be explained to you by the CT Technician.

CT Abdomen with rectal contrast


Rectal CT contrast is usually given using an enema where a small plastic tip is inserted into the rectum while a patient lies on their side. This tip is connected to a bag filled with the barium contrast through a tube. After the tip is inserted, the patient lies flat and the bag is raised above head level to allow the contrast to fill the lower intestines. During this filling phase, the patient may feel mild discomfort, coolness, and generalized fullness. It is important to relax as much as possible during this phase until the CT scan is complete.


The rectal contrast helps to increase the sensitivity of the CT exam by outlining not only the large intestines (colon), but also the bladder, the uterus in female patients and other organs. After the exam is complete, the rectal contrast will be drained and the patient may go to the bathroom.


Patient needs to have 4 hours fasting before your CT examination.


Check in at Reception one (1) hour BEFORE appointment time. Your scan will take approximately 30 minutes. You may receive an injection of contrast if needed.
Notify the technician if you are allergic to contrast, iodine, any medicine or eatables & pregnant. You may be asked to fill out a questionnaire and consent form for injection. Empty your bladder before your test unless told otherwise. Everything will be explained to you by the CT Technician.


CT Lower Abdomen / Pelvis


During a CT scan of the Lower part of abdomen, pictures are taken of cross sections or slices of the lower abdominal structures in your body. The lower abdominal structures include your Bladder, Prostate/Uterus & ovaries and the area around these organs. When contrast is used during a CT scan of the lower abdomen, these structures are highlighted even more.


CT scans can help determine a diagnosis early. Your doctor will use this information to determine the best treatment for you.


Patient needs to have 4 hours fasting before your CT examination.


Check in at Reception one (1) hour BEFORE appointment time. You may be given a liquid to drink (contrast media). This is why we have you arrive early. Your scan will take approximately 30 minutes. You may receive an injection of contrast if needed. Notify the technician if you are allergic to contrast, iodine, any medicine or eatables & pregnant. You may be asked to fill out a questionnaire and consent form for injection. Empty your bladder before your test unless told otherwise. Everything will be explained to you by the CT Technician.


CT KUB PLAIN / CONTRAST


During a CT scan of the KUB, pictures are taken of cross sections or slices of the KUB (Kidney, Ureter & Bladder) structures in your body. The KUB structures include your Kidney, Ureters & Bladder and the area around these organs. When contrast is used during a CT scan of KUB, these structures are highlighted even more.


CT scans can help determine a diagnosis early. Your doctor will use this information to determine the best treatment for you.


Patient needs to have 4 hours fasting (For contrast study) & full bladder before your CT examination. No diet restriction in noncontrast CT (plain CT).


Your scan will take approximately 15 minutes. Everything will be explained to you by the CT technician. If to rule out “kidney stones” drink three (3) glasses of water (1) hour before. DO NOT EMPTY YOUR BLADDER.


You may be instructed to come in one (1) hour before scan time.


You may receive an injection of contrast if needed (Only for contrast CT). Notify the technician if you are allergic to contrast, iodine, any medicine or eatables & pregnant. You may be asked to fill out a questionnaire and consent from for injection (Only for contrast CT).


CT IVP


An intravenous pyelogram (IVP) is an x-ray examination of the kidneys, ureters and urinary bladder that uses iodinated contrast material injected into veins.


An x-ray (radiograph) is a noninvasive medical test that helps physicians diagnose and treat medical conditions. Imaging with x-rays involves exposing a part of the body to a small dose of ionizing radiation to produce pictures of the inside of the body. X-rays are the oldest and most frequently used form of medical imaging.


When contrast material is injected into a vein in the patient's arm, it travels through the blood stream and collects in the kidneys and urinary tract, turning these areas bright white on the x-ray images. An IVP allows the radiologist to view and assess the anatomy and function of the kidneys, ureters and the bladder.


Patient needs to have 4 hours fasting (For contrast study) & full bladder before your CT examination. Notify the technician if you are allergic to contrast, iodine, any medicine or eatables & pregnant. You may be asked to fill out a questionnaire and consent from for injection


CT Angiography


During a CT angiogram pictures are taken of cross sections or slices of the heart. When contrast is used during a CT scan pictures of the heart are highlighted even more. (Contrast is given by power injector during this test).


CT scans can help determine a diagnosis early. Your doctor will use this information to determine the best treatment for you.


Patient needs to have 4 hours fasting before your CT examination.


Check in at Reception one (1) hour BEFORE appointment time. This is why we have you arrive early. Your scan will take approximately 30 minutes.


You may receive an injection of contrast (Only in Contrast CT). (Contrast is given by power injector during this test). You may be asked to fill out a questionnaire and consent form for injection. Notify the technician if you are allergic to contrast, iodine, any medicine or eatables & pregnant. Everything will be explained to you by the CT Technician.


CT Enterography


During CT Enterography, pictures are taken of cross sections or slices of the abdominal structures in your body focusing on the small bowel. You will drink a specific type of dilute barium prior to the scan and have an injection in a vein using an IV to highlight the small bowel even more. (Contrast is given by power injector during this test).


CT scans can help determine a diagnosis early. Your doctor will use this information to determine the best treatment for you.


Patient needs to have 4 hours fasting before your CT examination.


Check in at Reception one (1) hour BEFORE appointment time. You will drink a specific type of dilute barium prior to the scan and have an injection in a vein using an IV to highlight the small bowel even more. This is why we have you arrive early. Your scan will take approximately 30 minutes. Notify the technician if you are allergic to contrast, iodine, any medicine or eatables & pregnant. You may be asked to fill out a questionnaire and consent form for injection. Empty your bladder before your test unless told otherwise. Everything will be explained to you by the CT Technician.


CT Sinogram / Fistulogram


CT PNS


During a CT scan of the sinuses, pictures are taken of cross sections or slices of the sinuses. The sinuses are air-filled cavities in your head. CT scans can identify problems with your sinuses. Your doctor will use this information to determine the best treatment for you.


No diet restriction. Check in at reception 15 minutes before your exam time. Your scan will take few minutes. You may receive an injection of contrast (Only in Contrast CT).


You may be asked to fill out a questionnaire and consent form for injection. Notify the technician if you are allergic to contrast, iodine, any medicine or eatables & pregnant.


HRCT Temporal Bone / CECT Temporal Bone


During a CT scan of the temporal, pictures are taken of cross sections or slices of the ear and the area around these organs. CT scans can identify problems with your ear. Your doctor will use this information to determine the best treatment for you.


No diet restriction. Check in at reception 15 minutes before your exam time. Your scan will take few minutes. You may receive an injection of contrast (Only in Contrast CT).


You may be asked to fill out a questionnaire and consent form for injection. Notify the technician if you are allergic to contrast, iodine, any medicine or eatables & pregnant.


HRCT CHEST / CECT CHEST


During a CT scan of the chest pictures are taken of cross sections or slices of the thoracic structures in your body. The thoracic structures include your lungs, heart and the bones around these areas. When contrast is used during a CT scan of the chest thoracic structures are highlighted even more.


CT scans can help determine a diagnosis early. Your doctor will use this information to determine the best treatment for you.


Patient needs to have 4 hours fasting before your CT examination (only in contrast study).


Check in at reception 15 minutes before your exam time. Your scan will take few minutes. You may receive an injection of contrast (Only in Contrast CT).


You may be asked to fill out a questionnaire and consent form for injection. Notify the technician if you are allergic to contrast, iodine, any medicine or eatables & pregnant.


CT Extremity / Joints


During a CT scan of the joints (Shoulder, Elbow, Wrist, Hip, Knee & Ankle) pictures are taken of cross sections or slices of the joints (Shoulder, Elbow, Wrist, Hip, Knee & Ankle) and the bones around these areas.


No diet restriction. Check in at reception 15 minutes before your exam time. Your scan will take few minutes.


CT Spine


During a CT scan of the spine (Cervical, Dorsal, Lumbar, Sacrum & Coccyx) pictures are taken of cross sections or slices of the spine (Cervical, Dorsal, Lumbar, Sacrum & Coccyx) and the bones around these areas.


No diet restriction. Check in at reception 15 minutes before your exam time. Your scan will take few minutes.


NCCT Neck / CECT NECK


During a CT scan of the neck, pictures are taken of cross sections or slices of the neck region. When contrast is used during a CT scan of the neck, the structures are highlighted even more.


CT scans can help determine a diagnosis early. Your doctor will use this information to determine the best treatment for you.


No diet restriction. Check in at reception 15 minutes before your exam time. Your scan will take few minutes. You may receive an injection of contrast (Only in Contrast CT).


You may be asked to fill out a questionnaire and consent form for injection. Notify the technician if you are allergic to contrast, iodine, any medicine or eatables & pregnant.


CT Face


During a CT scan of the neck, pictures are taken of cross sections or slices of the face. When contrast is used during a CT scan of the face, the structures are highlighted even more.


CT scans can help determine a diagnosis early. Your doctor will use this information to determine the best treatment for you.


No diet restriction. Check in at reception 15 minutes before your exam time. Your scan will take few minutes. You may receive an injection of contrast (Only in Contrast CT).


You may be asked to fill out a questionnaire and consent form for injection. Notify the technician if you are allergic to contrast, iodine, any medicine or eatables & pregnant.