Podcast
Questions and Answers
One is not an imaging modality of the hepatobiliary system:
One is not an imaging modality of the hepatobiliary system:
Which is an indication for Ultrasound of the liver?
Which is an indication for Ultrasound of the liver?
Regarding the technique of Ultrasound of the liver:
Regarding the technique of Ultrasound of the liver:
Regarding Ultrasound of spleen
Regarding Ultrasound of spleen
Signup and view all the answers
From where do most primary liver tumors receive their blood supply?
From where do most primary liver tumors receive their blood supply?
Signup and view all the answers
What technique used for opacifying the biliary tree in CT cholangiography?
What technique used for opacifying the biliary tree in CT cholangiography?
Signup and view all the answers
What is generally preferred as oral contrast for pancreatic CT?
What is generally preferred as oral contrast for pancreatic CT?
Signup and view all the answers
Portal phase scan time is after...
Portal phase scan time is after...
Signup and view all the answers
How do most liver metastases appear on T2-weighted images?
How do most liver metastases appear on T2-weighted images?
Signup and view all the answers
What is the minimum field strength required for liver lesion detection?
What is the minimum field strength required for liver lesion detection?
Signup and view all the answers
Which contrast agents are commonly used for liver MRI?
Which contrast agents are commonly used for liver MRI?
Signup and view all the answers
What is the main purpose of MRCP?
What is the main purpose of MRCP?
Signup and view all the answers
What has replaced the use of operative cholangiogram?
What has replaced the use of operative cholangiogram?
Signup and view all the answers
When is a postoperative T-tube cholangiography usually performed?
When is a postoperative T-tube cholangiography usually performed?
Signup and view all the answers
What size needle is used for percutaneous transhepatic cholangiography (PTC)?
What size needle is used for percutaneous transhepatic cholangiography (PTC)?
Signup and view all the answers
What type of contrast medium is typically used for an ERCP procedure?
What type of contrast medium is typically used for an ERCP procedure?
Signup and view all the answers
Which equipment is required for an ERCP procedure?
Which equipment is required for an ERCP procedure?
Signup and view all the answers
What is the purpose of external biliary drainage?
What is the purpose of external biliary drainage?
Signup and view all the answers
What is the indication for internal biliary drainage?
What is the indication for internal biliary drainage?
Signup and view all the answers
What technique is used for the placement of a biliary stent in internal drainage of bile?
What technique is used for the placement of a biliary stent in internal drainage of bile?
Signup and view all the answers
Which imaging technique is commonly used for urological cancer staging?
Which imaging technique is commonly used for urological cancer staging?
Signup and view all the answers
Which percutaneous procedure involves the insertion of a tube to drain urine from the kidney?
Which percutaneous procedure involves the insertion of a tube to drain urine from the kidney?
Signup and view all the answers
Which imaging technique is used to evaluate renal tract calcifications?
Which imaging technique is used to evaluate renal tract calcifications?
Signup and view all the answers
What is the purpose of the immediate film in a IVU?
What is the purpose of the immediate film in a IVU?
Signup and view all the answers
When is compression contraindicated in a IVU?
When is compression contraindicated in a IVU?
Signup and view all the answers
What is the purpose of renal vascular interventional procedures?
What is the purpose of renal vascular interventional procedures?
Signup and view all the answers
What is the recommended time for renal CT scan in order to prevent small lesions from being obscured?
What is the recommended time for renal CT scan in order to prevent small lesions from being obscured?
Signup and view all the answers
What is considered specific for a benign adenoma when measuring attenuation of adrenal mass?
What is considered specific for a benign adenoma when measuring attenuation of adrenal mass?
Signup and view all the answers
What percentage absolute washout is specific for benign adenomas?
What percentage absolute washout is specific for benign adenomas?
Signup and view all the answers
What technique is used in CT for assessing renal stone disease?
What technique is used in CT for assessing renal stone disease?
Signup and view all the answers
What technique used to achieve renal collecting system distension in some protocols?
What technique used to achieve renal collecting system distension in some protocols?
Signup and view all the answers
What is a significant consideration for a triple-phase CTU compared to IVU?
What is a significant consideration for a triple-phase CTU compared to IVU?
Signup and view all the answers
Which technique is to ensure appropriate timing of contrast injection in renal CT angiography?
Which technique is to ensure appropriate timing of contrast injection in renal CT angiography?
Signup and view all the answers
What is the purpose of using T1-weighted scans in MRI of prostate?
What is the purpose of using T1-weighted scans in MRI of prostate?
Signup and view all the answers
Which functional study included in multiparametric MRI prostate?
Which functional study included in multiparametric MRI prostate?
Signup and view all the answers
What does the technique of excretory MR urography involve?
What does the technique of excretory MR urography involve?
Signup and view all the answers
What impact does high concentration of contrast agent have on MR urography?
What impact does high concentration of contrast agent have on MR urography?
Signup and view all the answers
Where smaller children allowed to pass urine in micturition cyst gram?
Where smaller children allowed to pass urine in micturition cyst gram?
Signup and view all the answers
How should boys micturate to allow spot films of the entire urethra?
How should boys micturate to allow spot films of the entire urethra?
Signup and view all the answers
What is the aftercare for patients after micturition cyst gram?
What is the aftercare for patients after micturition cyst gram?
Signup and view all the answers
What is the indication for ascending urethrogram in male?
What is the indication for ascending urethrogram in male?
Signup and view all the answers
What equipment's used in ascending urethrogram in male?
What equipment's used in ascending urethrogram in male?
Signup and view all the answers
What equipment's used in retrograde pyelography?
What equipment's used in retrograde pyelography?
Signup and view all the answers
What is a contraindication for percutaneous renal biopsy?
What is a contraindication for percutaneous renal biopsy?
Signup and view all the answers
When should HSG performed in a 28 day menstrual cycle?
When should HSG performed in a 28 day menstrual cycle?
Signup and view all the answers
How is patient positioned during HSG?
How is patient positioned during HSG?
Signup and view all the answers
Which is not a complication of HSG?
Which is not a complication of HSG?
Signup and view all the answers
What is the purpose of insertion a draining catheter in the kidney?
What is the purpose of insertion a draining catheter in the kidney?
Signup and view all the answers
What is a primary indication for CT of female reproductive system?
What is a primary indication for CT of female reproductive system?
Signup and view all the answers
When is MRI used in endometrial & cervical cancer?
When is MRI used in endometrial & cervical cancer?
Signup and view all the answers
Equipment of PTC Chiba needle (a fine, flexible ______ needle with stilette ______ long)
Equipment of PTC Chiba needle (a fine, flexible ______ needle with stilette ______ long)
Signup and view all the answers
Indications of the ultrasound of the liver are right upper quadrant pain or mass and .....
Indications of the ultrasound of the liver are right upper quadrant pain or mass and .....
Signup and view all the answers
Study Notes
Special Radiological Procedures for Biliary and Reproductive Systems
- Imaging modalities of the hepatobiliary system include MRI, PTC, triple-phase CT, and abdominal ultrasound
- Indications for liver ultrasound include jaundice, backache, renal calculi, or hernias in infants
- Ultrasound of the liver is performed with the patient in the prone position, and sometimes a left subcostal approach might be used
- Normal adult spleen size is 6-12 cm
- Primary liver tumors frequently receive their blood supply from the portal vein.
- Opacifying the biliary tree in CT cholangiography is done with cholangiographic agents
- Barium is a common oral contrast agent used in pancreatic CT
- Portal phase scan time is usually 40-60 seconds after contrast injection.
- Liver metastases typically appear hypo-intense on T2-weighted images.
- The minimum field strength for liver lesion detection is 1.5 Tesla.
- Contrast agents commonly used for Liver MRI are iodinated contrast or microbubbles.
- MRCP is used mainly for biliary stones.
- Postoperative T-tube cholangiography is usually performed on day 7.
- Percutaneous transhepatic cholangiography (PTC) commonly uses an 18-gauge needle or larger.
- ERCP procedures typically use iodinated contrast agents at 250 mg/ml.
- External biliary drainage relieves jaundice, biliary stones, and treats sepsis.
- Internal biliary drainage is indicated for malignant or benign strictures, or biliary trauma.
- A biliary stent in internal drainage of bile is usually placed via percutaneous transhepatic, endoscopic, or open surgical techniques.
- Urological cancer staging frequently utilizes imaging techniques such as CT and IVU.
- Nephrostomy is a percutaneous procedure used to drain urine from the kidney.
- Renal tract calcifications are commonly evaluated using plain radiographs.
- The immediate film in an IVU procedure is used to show the nephrogram, bladder and ureters.
- Compression is contraindicated in IVU if the patient has recent surgery, abdominal trauma.
- Renal vascular interventional procedures are aimed at restoring vessel patency.
- The recommended time for renal CT scan to avoid obscuring small lesions with contrast is 60 seconds post-contrast.
- Benign adrenal adenomas generally demonstrate less than 10 HU attenuation when measuring attenuation.
- Benign adenomas are often characterized by more than 50% washout on imaging.
- CT is used to assess renal stones.
- Patients are typically examined during a compression band technique to achieve renal collecting system distension.
- Various techniques such as bolus tracking, are used in CT angiography to ensure appropriate timing of contrast injection.
- T1-weighted scans in prostate MRI are used to assess post-biopsy hemorrhage.
- Multiparametric MRI prostate frequently includes T2, SPIR, and DWI evaluation.
- Excretory MR Urography commonly involves heavily T2-weighted sequences.
- In MR urography, contrast medium is usually not required when evaluating anatomical structures alone.
- High concentration of contrast agents in MR urography is not generally problematic.
- Patients should stand, or use an absorbent pad in micturition cystograms.
- Postoperative cholangiography patients typically require hospitalization and bed rest for observation.
- Acute urethrogram examinations are indicated for male patients and focus on congenital abnormalities, strictures or trauma.
- Retrograde pyelography uses a catheter to drain urine from the kidney.
- Postoperative T-tube cholangiography is often performed on the 7th day or later after surgery.
- Compression is contraindicated in IVU procedures with recent surgery or abdominal trauma.
- Multiparametric MRI prostate often includes T2, SPIR and DWI evaluation.
- Contrast medium is an essential component for ERCP.
- MRCP is indicated for abnormal liver parenchyma or liver lesions.
- Common contraindications for CT of the Liver and Biliary tree include:
- Pregnancy
- Allergy to iodinated contrast agents
- Allergy to non-iodinated contrast agents
- Early and late arterial phase with portal venous phase is appropriate for patients suspected of having hepatocellular cancer.
- Positive contrast medium can be necessary to opacify distal bowel loops, but it's best avoided in certain situations like CT angiography.
- Optimal injection rates of contrast medium for CT angiography vary but are relevant to the CT device itself.
- Contrast agents such as iodinated contrast medium 300 mg/ml are frequently used in ascending urethrography.
- Appropriate Hydration (oral or intravenous) is a crucial preparation for many urological imaging procedures.
- CT is a sensitive imaging technique used to detect pancreatic calcifications.
- Percutaneous renal biopsy has contraindications such as hydatid cyst or bleeding diathesis.
- Contraindications for percutaneous extraction of retained biliary calculi may include small T-tubes, tortuous T-tubes, acute pancreatitis, existing drains impeding T-tube access, or cross connections.
Additional Topics
- Patient positioning during a hysterosalpingography examination (HSG) commonly involves the patient lying in the supine position.
- The common indications for internal biliary drainage are malignant stricture, benign stricture, and biliary trauma.
- Indications for performing CT on the female reproductive system may include malignant strictures, benign strictures, and for staging of cancer.
- Indications of percutaneous transhepatic cholangiography (PTC) often include prior or ongoing interventional procedures such as treatment for strictures, or prior stent placement.
- Patient preparation for ultrasound of the pancreas may involve fasting for at least 6 hours.
- One common indicator for a renal cyst puncture or biopsy is the suspected presence of a renal cyst.
- Ultrasound imaging of the urinary tract can be used to identify hypertension, masses, hematuria conditions.
- Common reasons for performing a renal ultrasound include investigating hypertension, masses, and hematuria.
- Magnetic resonance imaging (MRI) pulse sequences, including T2-weighted spin echo, are frequently used for assessing reproductive organs and structures like ovaries, in the context of abdominal organs.
- Retrograde pyelography procedures utilize fluoroscopy, and the patient is often in the prone position or a lateral decubitus position
- Intraoperative cholangiography commonly utilizes fluoroscopy or ultrasound.
- Patients undergoing intravenous urography typically have a 5–minute or 10-minute immediate film taken after contrast injection, followed by additional films at various time points.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
This quiz focuses on special radiological procedures used for imaging the biliary and reproductive systems. It covers various imaging modalities such as MRI, CT, and ultrasound, along with indications, techniques, and specific details relevant to these procedures. Test your understanding of the topics discussed and enhance your knowledge in the field of radiology
