IMV: PET scan volume continues growing at steady pace

Procedure volume in the PET market is continuing to grow at about 6% per year...Read more on AuntMinnie.comRelated Reading: IMV: CT hits peak as users address workflow concerns IMV: MR providers work harder as procedure volume grows IMV: Global radiologists are optimistic despite local challenges IMV: Imaging boosts precision in radiation therapy IMV: Fixed C-arms improve interventional outcomes
Source: AuntMinnie.com Headlines - Category: Radiology Source Type: news

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Ventricular tachycardia (VT) occurs most commonly in the presence of structural heart disease or myocardial scarring from prior infarction. It is associated with increased mortality, especially when it results in cardiac arrest outside of a hospital. When not due to reversible causes (such as acute ischemia/infarction), placement of an implantable cardioverter-defibrillator for prevention of future sudden death is indicated. The current standard of care for recurrent VT is medical management with antiarrhythmic agents followed by invasive catheter ablation for VT that persists despite appropriate medical therapy. Stereotac...
Source: Cardiology in Review - Category: Cardiology Tags: Westchester Cardiovascular Symposium: October 3-5, 2019 Guest Editors: Julio Panza MD, Steven Lansman MD, PhD Source Type: research
Transforming growth factor β (TGFβ) promotes cell survival by endorsing DNA damage repair and mediates an immunosuppressive tumor microenvironment. Thus, TGFβ activation in response to radiation therapy is potentially targetable because it opposes therapeutic control. Strategies to assess this potential in the clinic are n eeded.
Source: International Journal of Radiation Oncology * Biology * Physics - Category: Radiology Authors: Source Type: research
This study used contrast-enhanced planning computed tomography scans from 62 patients with breast cancer who underwent breast-conservation surgery. Contours of target volumes (CTVs), organs, and heart substructures were generated using two commercial ABAS solutions and DLBAS using fully convolutional DenseNet. The accuracy of the segmentation was assessed using 14 test patients using the Dice Similarity Coefficient and Hausdorff Distance referencing the expert contours. A sensitivity analysis was performed using non-contrast planning CT from 14 additional patients. Compared to ABAS, the proposed DLBAS model yielded more co...
Source: Radiotherapy and Oncology : journal of the European Society for Therapeutic Radiology and Oncology - Category: Radiology Authors: Tags: Radiother Oncol Source Type: research
Abstract The purpose of this feasibility study is to develop a fully automated procedure capable of generating treatment plans with multiple fractionation schemes to improve speed, robustness, and standardization of plan quality. A fully automated script was implemented for spinal stereotactic radiosurgery/stereotactic body radiation therapy (SRS/SBRT) plan generation using Eclipse v15.6 API. The script interface allows multiple dose/fractionation plan requests, planning target volume (PTV) expansions, as well as information regarding distance/overlap between spinal cord and targets to drive decision-making. For e...
Source: Journal of Applied Clinical Medical Physics - Category: Physics Authors: Tags: J Appl Clin Med Phys Source Type: research
Case Summary: A 61-year-old woman with ongoing tobacco use was referred to a colorectal surgery clinic after a screening colonoscopy found irregular lesions at the dentate line with biopsies revealing a high-grade squamous intraepithelial lesion. She reported scant bleeding and irregular bowel function, but no incontinence. She has a history of abnormal Papanicolaou tests, but has since undergone a hysterectomy and has no history of immunosuppressive treatment or HIV. She was taken for an examination under anesthesia that revealing a 2.5-cm mass in the anal canal and was biopsied. Pathological examination confirmed anal ...
Source: Diseases of the Colon and Rectum - Category: Gastroenterology Tags: Resident’s Corner Source Type: research
Radiation induced lung fibrosis (RILF) is a common late complication after radiotherapy without effective treatment. Thyroid hormone (TH) is known to reverse bleomycin-induced pulmonary fibrosis in recent study. We therefore sought to examine TH effect in RILF. Aerosolized TH delivery prevented pulmonary fibrosis according to either micro-computed tomography scans or histological evaluations, without significant changes in serum THs in a murine model of RILF by attenuating TGF-β1 and phosphorylated Smad2/3 expressions and reducing the accumulation of M2-like macrophages. Furthermore, hypothyroidism was significantly c...
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
Abstract PURPOSE/OBJECTIVE(S): To study the heart motion using cardiac gated computed tomographies (CGCT) to provide guidance on treatment planning margins during cardiac stereotactic body radiation therapy (SBRT). MATERIALS/METHODS: Ten patients were selected for this study, who received CGCT scans that were acquired with intravenous contrast under a voluntary breath-hold using a dual source CT scanner. For each patient, CGCT images were reconstructed in multiple phases (10%-90%) of the cardiac cycle and the left ventricle (LV), right ventricle (RV), ascending aorta (AAo), ostia of the right coronary artery ...
Source: Journal of Applied Clinical Medical Physics - Category: Physics Authors: Tags: J Appl Clin Med Phys Source Type: research
AbstractPurpose of ReviewMetabolic reprogramming and avid fluorodeoxyglucose (FDG) uptake in locally advanced head and neck squamous cell carcinomas and other cancers of the upper aerodigestive tract lead to favorable sensitivity and diagnostic accuracy of FDG PET/CT or PET/MR compared to conventional imaging. Meanwhile, the role of non-FDG PET in head and neck malignancies is rapidly expanding.Recent FindingsAccurate staging, identifying a clinically occult primary, or detection of distant metastasis or a synchronous malignancy on FDG PET significantly impacts management. FDG uptake after definitive therapy is an invaluab...
Source: Current Radiology Reports - Category: Radiology Source Type: research
We present a case of ACC that occurred in ectopic lacrimal gland tissue involving the medial region of both orbits. A 74-year-old woman was admitted with a 4-week history of progressive painful proptosis in her left eye. Examination revealed a medium-size bilateral nasal canthal mass. Computed tomography (CT) scan revealed a nasal mass in both orbits with bone erosion. The patient underwent bilateral anterior orbitotomy and incisional biopsy was performed. Histopathology exam revealed an ACC with perineural and bone invasion. She refused orbital exenteration and radiation therapy was initiated. PMID: 32912017 [PubMed ...
Source: Orbit - Category: Opthalmology Authors: Tags: Orbit Source Type: research
Conclusion: The multi-institutional MOMENTUM study has been set up to collect clinical and technical patient data to advance technical development, and facilitate evidenced-based implementation of MR-linac technology with the ultimate purpose to improve tumor control, survival, and quality of life of patients with cancer.
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
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