Haq Adeel,  Siegel Marilyn,  Awali Mohamed

Final Pr. ID: Poster #: EDU-096

Dual energy CT with material-specific reconstructions including iodine, pulmonary blood volume, and lung vessel images can improve assessment of vascular and associated parenchymal abnormalities.
An understanding of material-specific reconstruction algorithms, clinical applications and potential pitfalls can help in accurate interpretation of dual energy CT examinations.

Purpose of this exhibit is to review:

Basic principles of dual energy CT material-specific reconstructions
● Iodine maps
● Pulmonary blood volume (PBV) images
● Lung vessel images

Specific applications and benefits of material-specific reconstructions in cardiothoracic imaging
● Pulmonary embolism: Vessel and PBV images can improve detection of embolus and infarction
● Congenital cyanotic heart disease: Material-specific reconstructions can have a role in assessing pulmonary artery flow/lung perfusion and adequacy of reconstruction surgery
● Arteriovenous malformations: Material-specific images can increase conspicuity of small malformations and can be used to evaluate the success of embolization
● Pulmonary hypertension: Material-specific images are useful to detect subtle decreases in parenchymal perfusion and pulmonary blood flow
● Airway diseases: Reconstructions can provide information on the downhill effect of bronchial obstruction.

Potential pitfalls and artifacts in interpreting material specific reconstructions
● Beam-hardening artifacts
● Diaphragmatic motion
● Cardiac motion

Radiation Dose: Similar or less than single-energy CT Read More

Authors:  Haq Adeel , Siegel Marilyn , Awali Mohamed

Keywords:  Dual Energy CT, Iodine mapping, Pulmonary Blood Volume

Mirza Sobia,  Shalaby-rana Eglal,  Kovats Catalina,  Loomis Judyta,  Vyas Pranav,  Shet Narendra,  Fricke Stanley,  Cielma Tara,  Bush Ebony,  Grecco Krystal

Final Pr. ID: Poster #: EDU-068

This electronic poster discusses the various clinical and imaging features of pediatric hyperthyroidism, including Graves’ disease and toxic nodule. Imaging modalities reviewed include ultrasound and molecular imaging. We will provide an overview of I-131 hyperthyroid therapy with focus on guideline-based practices of patient preparation, I-131 dosing and post-therapy radiation precautions. A pressing concern for patients and families following I-131 therapy is how long radiation precautions must be followed and when the patient may return to school or work. We have developed and implemented a table listing the appropriate duration of post-therapy radiation precautions based on the administered I-131 dose. We propose the use of such tables for ease of consultation and standardization of discharge procedures. Read More

Authors:  Mirza Sobia , Shalaby-rana Eglal , Kovats Catalina , Loomis Judyta , Vyas Pranav , Shet Narendra , Fricke Stanley , Cielma Tara , Bush Ebony , Grecco Krystal

Keywords:  hyperthyroid, I-131, iodine