Publications by authors named "N Karkavitsas"
Background: Prone imaging has been demonstrated to minimize diaphragmatic and breast tissue attenuation.
Objectives: To determine the role of prone imaging on the reduction of unnecessary rest perfusion studies and coronary angiographies performed, thus decreasing investigation time and radiation exposure.
Methods: We examined 139 patients, 120 with an inferior wall and 19 with an anterior wall perfusion defect that might represented attenuation artifact.
Article Synopsis
- This study looked at how often myocardial perfusion imaging (MPI) is used correctly and what makes it used incorrectly.
- Out of over 3,000 patients, 72.8% had appropriate tests, while 19.2% were not needed, and the main reason was for patients who showed no symptoms after heart treatment.
- The study found that certain factors, like being under 65 years old and having no diabetes, made it more likely for the MPI test to be used inappropriately.
Aim: To evaluate the potential of SPECT myocardial perfusion imaging (MPI)-computed tomography coronary angiography (CTCA) hybrid fusion imaging to improve the diagnostic performance of cardiac SPECT/MPI and CTCA alone in order to act as more accurate gate keeper to further investigation invasive or not.
Methods And Results: Twenty-five patients were subjected to SPECT/MPI and CTCA within a period of 1 month without any medical treatment modification. A fusion software package was used for cardiac SPECT-CTCA image fusion.
Objectives: To evaluate the role of sleeve gastrectomy (SG) in gastrointestinal motility.
Background: SG is a widely used bariatric operation leading to weight loss and early improvement of patient's metabolic profile. Current data indicate faster postoperative gastric emptying, but detailed studies on alterations in small bowel motility are missing.
A 70-year-old man with a history of weight loss, changes in bowel habits, and hematochezia had rectal adenocarcinoma. He was palliated with diverting colostomy, followed by radiochemotherapy. Bilateral hydronephrosis was found incidentally on lower abdominal CT scan.
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