45 results found
Article
Single contrast upper GI technique
Single contrast upper GI technique is a method of imaging the esophagus, stomach, and duodenum with fluoroscopy. "Single contrast" refers to imaging with barium or water-soluble contrast only, without the addition of effervescent granules.
Indications
The single contrast upper GI study may be ...
Article
Videofluoroscopic swallow study
Videofluoroscopic swallow studies (also often called modified barium swallow studies) are a variation on traditional barium swallow studies. Although typical barium swallow studies / esophagrams evaluate the pharynx, the goal in these studies is to even more closely evaluate the oral cavity, pha...
Article
Rectal MRI (an approach)
Rectal MRI is a key imaging investigation in the diagnosis, staging and follow up of rectal cancer. An increase in the utility of rectal MRI as been driven by the recognition of the mesorectum as a distinct anatomic compartment containing and limiting the margins of the rectum, and forming a sur...
Article
Anorectal disease (summary)
This is a basic article for medical students and other non-radiologists
Anorectal disease is a group of conditions that affect the anus and rectum. The most common conditions in this group include hemorrhoids, anal fissures, anorectal abscess and anal fistula.
Reference article
This is a summ...
Article
Gastroschisis
Gastroschisis refers to an extra-abdominal herniation (evisceration) of fetal or neonatal bowel loops (and occasionally portions of the stomach and or liver) into the amniotic cavity through a para-umbilical anterior abdominal wall defect.
Epidemiology
The estimated incidence is around 1-6 per...
Article
Malignant biliary tract obstruction (summary)
This is a basic article for medical students and other non-radiologists
Malignant biliary tract obstruction (MBTO) represents a group of conditions that cause obstructive jaundice. While most examples are the result of pancreatic head cancers, other malignancies may be causative.
Reference art...
Article
Splenic ultrasound
Splenic ultrasound is a non-invasive diagnostic imaging method that uses high-frequency sound waves to visualize and assess the size, shape, structure, and potential abnormalities of the spleen.
Indication
trauma: splenic injuries resulting from accidents, sports injuries, or any other form of...
Article
Abdominal pain in pregnancy protocol (MRI)
The abdominal pain in pregnancy MRI protocol encompasses a set of MRI sequences for assessment of causes of non-traumatic abdominal pain in pregnancy.
Note: This article aims to frame a general concept of an MRI protocol for the assessment of the abdomen in pregnancy. Protocol specifics will va...
Article
Rectal cancer
Rectal cancer, although sharing many of the features of generic colorectal carcinoma (CRC), has different preoperative imaging assessment, with MRI rectum as the mainstay for local staging, and distinct surgical techniques (i.e. total mesorectal excision).
Epidemiology
Rectal cancer is genera...
Article
Esophageal cancer (summary)
This is a basic article for medical students and other non-radiologists
Esophageal cancer is a relatively uncommon tumor that occurs within the esophagus of affected individuals. Patients present with symptoms of increasing dysphagia that progress from solid foods to liquids.
Reference article...
Article
Octreotide scintigraphy
Octreotide scintigraphy uses 111In-labeled octreotide, which is a somatostatin analog; it is also known as Octreoscan, a brand name for 111In-labeled pentetreotide. Pentetreotide is a DTPA-conjugated form of octreotide, originally manufactured by Mallinckrodt Nuclear Medicine LLC, which now form...
Article
Large bowel obstruction (summary)
This is a basic article for medical students and other non-radiologists
Large bowel obstruction (LBO) occurs when there is mechanical obstruction of the large bowel and is often impressive on imaging on account of the ability of the large bowel to massively distend. This condition requires prom...
Article
Congenital tracheo-esophageal fistula
Congenital tracheo-esophageal fistula is a congenital pathological communication between the trachea and esophagus.
Epidemiology
Tracheo-esophageal fistula and esophageal atresia have a combined incidence of approximately 1 in 3500 live births 1-3,5. There is only a minimal hereditary/geneti...
Article
Perineum
The perineum is a diamond-shaped region below the pelvic diaphragm and is divided by an imaginary line drawn between the ischial tuberosities into anteriorly the urogenital triangle and posteriorly the anal triangle.
Gross anatomy
The perineum is bounded by the pubis anteriorly, the ischial tu...
Article
CT abdomen (summary)
This is a basic article for medical students and other non-radiologists
CT abdomen is an increasingly common investigation that is used to help make diagnoses of a broad range of pathologies. A CT abdomen in its simplest form is a CT from diaphragm to symphysis pubis performed 60 seconds after ...
Article
Bowel obstruction
Bowel obstructions are common and account for 20% of admissions with "surgical abdomens". Radiology is important in confirming the diagnosis and identifying the underlying cause.
Bowel obstructions are usually divided according to where the obstruction occurs, and since imaging appearances, und...
Article
Fascial tail sign
The fascial tail sign refers to the linear/tapered extension of soft tissue tumors along the fascia.
The sign has been classically described in benign fibrous proliferations 1-4:
desmoid tumor
plantar fibromatosis
nodular fasciitis
However, the same sign has also been described as the tail ...
Article
Perianal fistula protocol (MRI)
MRI protocol for the assessment of perianal fistulas is a group of MRI sequences put together to asses the extension and anatomic relationships of inflammatory fistulas to the anal sphincters, helping to plan surgical management and monitor treatment response.
NB: This article is intended to o...
Article
Cascade stomach
A cascade stomach, also referred to as a cup and spill configuration, is an anatomic variant of the stomach involving an angulation separating the fundus and body of the stomach. It is named for its appearance on contrast swallow, where contrast may fill the proximal stomach before spilling over...
Article
Pancreaticoduodenal arcade
The pancreaticoduodenal arcade refers to an arterial network that links the blood flow of the celiac artery and superior mesenteric artery via the superior and inferior pancreaticoduodenal arteries.
Gross anatomy
Origin
The pancreaticoduodenal arcades originate from the superior pancreaticodu...
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