Publications by authors named "John Ferretti"

Article Synopsis
  • This study focuses on reducing radiation exposure from CT scans while effectively identifying and characterizing lung nodules that could indicate lung cancer.
  • It evaluates the effectiveness of different imaging techniques and reconstruction algorithms at multiple radiation dose levels with 133 patients involved.
  • Findings reveal that a specific reconstruction method (MRF-T) at lower doses can localize and characterize nodules comparably to higher doses, highlighting the textures' significance in nodules' detection.
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Markov random field (MRF) has been widely used to incorporate a priori knowledge as penalty or regularizer to preserve edge sharpness while smoothing the region enclosed by the edge for pieces-wise smooth image reconstruction. In our earlier study, we proposed a type of MRF reconstruction method for low-dose CT (LdCT) scans using tissue-specific textures extracted from the same patient's previous full-dose CT (FdCT) scans as prior knowledge. It showed advantages in clinical applications.

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Article Synopsis
  • The study aimed to analyze different types of waveforms in type II endoleaks (T2ELs) and their influence on aneurysm sac size after endovascular aneurysm repair.
  • Out of 382 patients, 56 (14.65%) were diagnosed with T2EL, primarily within the first year post-procedure, with a majority being male and an average age of 74 years.
  • Several T2EL flow patterns were identified, showing varying outcomes: high-resistance, low-flow endoleaks mostly occluded, while low-resistance, high-flow endoleaks showed higher rates of sac enlargement and needed treatment.
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Whereas coronary aneurysms are commonly associated with Kawasaki disease, involvement of the renal vasculature is exceedingly rare. Genitourinary involvement in patients with Kawasaki disease is typically limited to sterile pyuria and proteinuria. In this case, a 13-year-old girl who presented with right flank pain and microhematuria was found to have an intraparenchymal hemorrhagic mass on computerized tomography scan.

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Context: In 2007, the Lake Erie College of Osteopathic Medicine initiated its Primary Care Scholar Pathway (PCSP), a 3-year osteopathic predoctoral education curriculum.

Objective: To assess preliminary outcomes of the PCSP curriculum.

Methods: Scores for the Comprehensive Osteopathic Medical Licensing Examination (COMLEX-USA) Levels 1 and 2-Cognitive Evaluation (CE) and pass rates for Level 2-Performance Evaluation (PE) were obtained for individuals who graduated from the PCSP program in 2010, 2011, and 2012.

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Purpose: To prospectively determine the distribution, extent, and age of venous thrombosis in patients presenting with acute signs and symptoms of venous thromboembolism and identify candidates for thrombolysis.

Materials And Methods: Five hundred seventy-six consecutive patients (281 male, 295 female; mean age 58) referred for lower extremity deep vein thrombosis (DVT) assessment between November 2007 and April 2008 were included in the study. Documented cases of DVT were categorized by age (acute, chronic, and acute on chronic), anatomic location, and extent.

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We present 2 cases of hemorrhage from a visceral artery pseudoaneurysm, managed successfully with endovascular covered stent placement. The first case was a 59-year-old man, 3 months after a laparoscopic distal pancreatectomy for adenoma, presenting with diffuse abdominal pain. The patient was evaluated with a computed tomography scan revealing a splenic artery pseudoaneurysm (PA) bleeding into a pancreatic pseudocyst.

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A spontaneous ilioiliac arteriovenous fistula secondary to rupture of a hypogastric artery aneurysm is an unusual occurrence. A case of an endovascular repair of this challenging problem is reported.

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