The abdomen is the part of the body that contains all of the structures between the thorax chest and the pelvis, and is separated from the thorax via the diaphragm. A ct scan, or computed tomography scan is a medical imaging procedure that uses computerprocessed combinations of many xray measurements taken from different angles to produce. Ct scans use xray technology and advanced computer analysis to create detailed pictures of your body. Ct abdomen is an increasingly common investigation that is used to help make diagnoses of a broad range of pathologies. The region occupied by the abdomen is called the abdominal cavity, and is enclosed by the abdominal muscles at front and to the sides, and by part of the vertebral column at the back. The scan can show crosssectional images of a specific area of the body. In this article, we will outline the basic science behind ct scans, describe the principles of interpretation, and highlight their advantages and drawbacks compared to other. Can a clinician interpret ct scan like a radiologist.
Pre contrast scans liver, kidney, urinary bladder triphasic scan for liver arterial, portal, delayed detailed examination of the superior mesenteric artery and celiac artery. It is performed with a higher radiation dose and larger dose of iv contrast, which helps to evaluate subtle areas of bowel inflammation. Anatomy of the abdomen and male pelvis using crosssectional imaging ct interactive atlas of human anatomy we created an anatomical atlas of abdominal and pelvic ct which is an interactive tool for studying the conventional anatomy of the normal structures based on a multidetector computed tomography. Ct scan of the abdomen health encyclopedia university. Scrollable computed tomography images of a normal abdomen.
The scan can show crosssectional images of a specific. This photo gallery presents the anatomy of the abdomen by means of ct axial, coronal, and sagittal reconstructions. Understand the anatomy utilize different ct windows to assess for pathology in the soft tissue, brain, sinuses, and bones good luck. Computed tomography ct chest computed tomography ct of the chest uses special xray equipment to examine abnormalities found in other imaging tests and to help diagnose the cause of unexplained cough, shortness of breath, chest pain, fever and other chest symptoms. Computed tomography ct abdomen and pelvis computed tomography ct of the abdomen and pelvis is a diagnostic imaging test used to help detect diseases of the small bowel, colon and other internal organs and is often used to determine the cause of unexplained pain. Computed tomography ct donut shaped machine uses xray energy and computer generation of images advantages sensitive to slight density difference cross sectional anatomy attenuation. This is a basic article for medical students and other nonradiologists ct abdomen is an increasingly common investigation that is used to help make diagnoses of a broad range of pathologies. Abdominal ct scan crossing the barrier in bedside interpretation 2.
Part i sectional anatomy of the body chest abdomen pelvis. I use this book to test the ct techs to make sure they know what they should see on a ct scan and what a good scan looks like. Axial, coronal, sagittal, and 3d reconstructions accompany highly accurate and detailed medical drawings. This tool addresses common symptoms and symptom comp lexes. Cross sectional and imaging anatomy of the abdomen duration. The scanner emits xrays towards the patient from a variety of angles and the detectors in the scanner measure the difference between the xrays that are absorbed by the body, and xrays that are transmitted through the body. Computed tomographic anatomy of the abdominal cavity in the. To better visualize the anatomy, postprocessing of the images is common. If your doctor has ordered an abdominal ct scan, you probably have questions about the procedure and how you should prepare for it.
Assistant professor of radiology and biomedical imaging, yale university school of medicine. An understanding of the quadrant anatomy allows you to identify relevant pathology. Abdominal ct scans are used to image the organs, tissues and vessels in the. Examination time has been markedly reduced and it is possible to cover considerably larger scan ranges. Your doctor has requested a computed tomography scan ct or cat of your abdomen and pelvis. A computed tomography ct scan is an imaging test that uses xrays and a computer to make detailed images of the body. Westin, md candidate 2008, university of californiairvine school of medicine, irvine, ca. Triphasic scan for liver arterial, portal, delayed detailed examination of the superior mesenteric artery and celiac artery. When interpreting at ct scan, it is important to determine the orientation. This test uses xrays to create crosssectional pictures of the belly area.
How to read a ct of the abdomen and pelvis radiology. Pocket atlas of body ct anatomy radiology pocket atlas. Look carefully at the images to determine the affected lobe. A ct computed tomography scan, also called a cat scan, is a type of specialized xray. Use the mouse scroll wheel to move the images up and down alternatively use the tiny arrows on both side of the image to move the images. Introduction ct anatomy abdomen ct section with pathology take home message 6. Ct cross sectional anatomy abdomen axial view youtube. A systematic approach to the interpretation of ct computed tomography of the abdomen and pelvis. Computed tomography of kidneys, ureters and bladder ct kub.
Abdominal ct scan is an excellent way to visualize the contents of abdomen. Computed tomography of the abdomen and pelvis wikipedia. Computed tomography, more commonly known as a ct or cat scan, is a diagnostic medical imaging test. Radiology basics of abdominal ct anatomy with annotated coronal images and scrollable axial images to help medical students and junior doctors learning anatomy. A ct abdomen in its simplest form is a ct from diaphr. The atlas mimics a radiological workstation pacs and includes anatomy as it presents itself on plain film as well as on crosssectional studies with multiplanar reconstruction mpr and three. Feb 06, 2018 this video is from our crosssectional anatomy series. Pediatric and congenital abdomen and pelvis imaging guidelines page 1 of 55 medsolutions, inc. Some of the reasons your doctor may want you to have an abdominal ct scan include. A ct acan of the abdomen and pelvis can help diagnose problems in the bladder, uterus, prostate, liver or bowels. Triphasic scan for liver arterial, portal, delayed.
Pocket atlas of body ct anatomy radiology pocket atlas series. Right hepatic vein divides the right lobe into anterior and posterior segments. Albertine g09a peritoneum, gi system overview and foregut dr. Crosssectionnal anatomy of the head on a cranial ct scan. Images are most commonly presented in the transverse plane, and are orientated so that we are looking up the body from the patients toes. Abdominal ct anatomy online radiology course lecturio. How to read a ct of the abdomen and pelvis radiology case. Feb 27, 2019 a computerized tomography ct scan of the kidneys, ureters and bladder kub is referred to as a ct kub. A ct scan shows details of the bones, muscles, fat, soft tissues, organs, and blood vessels. It contains information about the normal anatomy and the most common. Ct scanning is fast, painless, noninvasive and accurate. Ct scan of the abdomen orand pelvis is covered for all health insurance plans administered by daman, as per policy terms and conditions.
A ct abdomen in its simplest form is a ct from diaphragm to symphysis pubis performed 60 seconds after pumpinjection of iodinated contrast into a peripheral vein. Many items in each picture are labeled, but not all anatomy that one might be interested in. Christian fox, md, rdms, associate professor of emergency medicine, university of californiairvine school of medicine, irvine, ca. Ct scans are created using a series of xrays, which are a form of radiation on the electromagnetic spectrum. With advancements in technology, it is rapidly replacing many diagnostic radiographic procedures. This video is from our crosssectional anatomy series. Abdomen anatomy angiography barium enema basic salary board exam results brain scan mri cholangiography contrast media ct scan degree program in radiology dental radiography certification digital xray machine head scan interventional radiology jobs licensure result lumbar spine. Computed tomography of the abdomen and pelvis, performed as a contrast ct, here presented in the axial, coronal and sagittal planes, with 3 mm slice thickness. Ct scan abdomen free download as powerpoint presentation.
Axial, coronal, sagittal, and 3d reconstructions accompany highly accurate and detailed medical drawings, assisting you in making an. The purpose of the scan is to obtain images from different angles of the urinary system. There is associated mild hydroureter and hydronephrosis on this side. Scans should be obtained through the entire area of interest. Ct is superior to plain xray imaging in demonstrating abdominal anatomy. The video will describe anatomical structures as seen on a ct scan. It is also a useful test to investigate acute abdominal pain especially of the lower quadrants, whereas ultrasound is the preferred first line. A ct scan, or computed tomography scan is a medical imaging procedure that uses computerprocessed combinations of many xray measurements taken from different angles to produce crosssectional tomographic images virtual slices of specific areas of a scanned object, allowing the user to see inside the object without cutting. Abdominal ct performed for evaluation of renal stones is performed without intravenous contrast cpt74150.
A systematic approach to the interpretation of ct abdomen. It is used frequently to determine stage of cancer and to follow progress. How to read an abdominal computed tomography scan 2008. Ct scan of a normal abdomen and pelvis, taken in the axial, coronal and sagittal. Abdominal ct scans use xray technology to take pictures of your abdomen, giving your doctor more information so. Click on the number, that identifies liquid density. Abdominal organs can also be categorized as to whether are retroperitoneal. Chest, abdomen, pelvis provides detailed views of anatomic structures in successive imaging slices in each standard plane of imaging. The abdomen can be divided into four quadrants, each containing specific visceral organs.
Pdf diagnostic accuracy of ct scans in acute abdomen. Prepare for abdominal ct scan american health imaging. It is in the left ureter at the level of the pelvic brim. The atlas mimics a radiological workstation pacs and includes anatomy as it presents itself on plain film as well as on crosssectional studies with multiplanar reconstruction mpr and threedimensional volume rendering technique 3d vr. This ct scan has been performed without contrast in this case, it is a kub scan that was performed to look for renal stones. Scrollable computed tomography images of a normal abdomen and. For medical professionals ct scan is not covered for screening purposes for any plans.
Abdominal ct is usually performed with contrast cpt74160. Use of specific xray machine for capture images of inside of abdomen is the feature of abdominal ct scan. It provides detailed images of abdominal organs such as liver, pancreas, spleen, kidneys, gastrointestinal tract, colon and rectum. The subject is a 21 year old male who had blunt trauma to the upper abdomen during motocross. Computed tomography ct scanning is an extremely common imaging modality in modern medicine. A helpful way to get your bearings is the acronym ralp. This is a basic article for medical students and other nonradiologists. Computed tomography of the abdomen and pelvis is an application of computed tomography ct and is a sensitive method for diagnosis of abdominal diseases. You will lie on a narrow table that slides into the center of the ct scanner. Introduction omputed tomography ct is an imaging technique with gives us an opportunity to. Jan 14, 2020 anatomy of the abdomen and male pelvis using crosssectional imaging ct interactive atlas of human anatomy we created an anatomical atlas of abdominal and pelvic ct which is an interactive tool for studying the conventional anatomy of the normal structures based on a multidetector computed tomography. This mri abdomen axial cross sectional anatomy tool is absolutely free to use. Data is usually acquired during the portal venous phase of contrast agent enhancement approximately 60 70 seconds postinjection to optimise delineation of the liver, which derives its primary supply from the portal vein. Abdomen and pelvis ct anatomy mamdouh mahfouz md mamdouh.