Size-specific dose estimates (SSDEs) for computed tomography and influencing factors on it: a systematic review

The actual dose received during a computed tomography (CT) examination depends on both the patient size and the radiation output of the scanner. To represent the actual patient morphometry, a new radiation dose metric named size-specific dose estimates (SSDEs) was developed by the American Association of Physicists in Medicine in 2011. The purpose of this article is to review the SSDE concept and the factors influencing it. Moreover, the appropriate methodology of SSDE determination and the application of SSDE as a diagnostic reference-level quantity is critically analyzed based on the data available in the literature. It is expected that this review could potentially increase awareness among CT users of the effective utilization of SSDE as a tool to aid in the optimization of radiation dose in CT.
Source: Journal of Radiological Protection - Category: Physics Authors: Source Type: research

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A 48-years-old woman was admitted in the emergency department due epigastric pain, vomiting and cough. She presented with fever and increased inflammatory parameters. A thoracoabdominal computed-tomography (CT) was performed and revealed thickening of the gastric fundus and esophagus, with an apparent laceration in esophageal mucosa and associated dissection of esophageal wall. In upper endoscopy (UE), a bulging of esophageal and gastric walls was observed, with an ulceration in proximal esophagus, suggestive of a perforation. After multidisciplinary discussion, a minimally invasive endoscopic approach was decided. Interna...
Source: Digestive Diseases - Category: Gastroenterology Source Type: research
CONCLUSIONS: Management of mediastinal parathyroid adenoma is based on the diagnosis imaging assessment step, usually by MIBI scintigraphy. Surgical ablation is a radical treatment. Peroperative hormonal evaluation is mainly recommended.PMID:35079264 | PMC:PMC8768862 | DOI:10.5114/kitp.2021.112189
Source: Polish Journal of Cardio-Thoracic Surgery - Category: Cardiovascular & Thoracic Surgery Authors: Source Type: research
CONCLUSION: An ON case of an Indonesian female was successfully resected without complication through a join operation of endoscopic endonasal approach four-hand technique with a neurosurgeon.PMID:35079375 | PMC:PMC8767289 | DOI:10.1016/j.amsu.2022.103242
Source: Annals of Medicine - Category: Internal Medicine Authors: Source Type: research
CONCLUSION: Timely diagnosis and prompt treatment of choriocarcinoma is necessary to prevent mortality and bad prognosis. It should be differentially diagnosed with all the types of pregnancies.PMID:35079370 | PMC:PMC8767310 | DOI:10.1016/j.amsu.2021.103236
Source: Annals of Medicine - Category: Internal Medicine Authors: Source Type: research
CONCLUSION: The main takeaway lesson of this particular case is to consider the differential diagnosis of ascites from an etiologic point of view and not to overemphasize a single etiology.PMID:35079362 | PMC:PMC8767293 | DOI:10.1016/j.amsu.2021.103218
Source: Annals of Medicine - Category: Internal Medicine Authors: Source Type: research
CONCLUSION: The presence of synchronous tumors can be evidenced in imaging tests, such as CT scan, but appropriate diagnostic tests for each neoplasm, such as colonoscopy, should not be ruled out. The treatment of choice must be surgery, when possible, with the options of conventional access, videolaparoscopic and robotic surgery.PMID:35079355 | PMC:PMC8767268 | DOI:10.1016/j.amsu.2021.103187
Source: Annals of Medicine - Category: Internal Medicine Authors: Source Type: research
CONCLUSION: An ON case of an Indonesian female was successfully resected without complication through a join operation of endoscopic endonasal approach four-hand technique with a neurosurgeon.PMID:35079375 | PMC:PMC8767289 | DOI:10.1016/j.amsu.2022.103242
Source: Hand Surgery - Category: Surgery Authors: Source Type: research
CONCLUSIONS: Management of mediastinal parathyroid adenoma is based on the diagnosis imaging assessment step, usually by MIBI scintigraphy. Surgical ablation is a radical treatment. Peroperative hormonal evaluation is mainly recommended.PMID:35079264 | PMC:PMC8768862 | DOI:10.5114/kitp.2021.112189
Source: Polish Journal of Cardio-Thoracic Surgery - Category: Cardiovascular & Thoracic Surgery Authors: Source Type: research
In this study, we describe percutaneous access to the lumbar disc and insertion of an expandable titanium cage through Kambin's triangle without facetectomy. The objective of this study is to determine the feasibility as well as clinical and radiographical outcomes of completely percutaneous lumbar interbody fusion (percLIF) using an expandable titanium cage through Kambin's triangle.METHODS: A retrospective review of patients undergoing single-level percLIF for grade 1 lumbar spondylolisthesis via Kambin's triangle using an expandable titanium cage was performed. Demographic information, Oswestry Disability Index (ODI), p...
Source: Pain Physician - Category: Anesthesiology Authors: Source Type: research
J Contemp Brachytherapy. 2021 Dec;13(6):655-662. doi: 10.5114/jcb.2021.112117. Epub 2021 Dec 30.ABSTRACTPURPOSE: The aim of this prospective study was to analyze dosimetric impact of modifying bladder filling on dose distribution in organs at risk (OARs) when using contrast in the small bowel of patients under adjuvant therapy with high-dose-rate vaginal cuff brachytherapy (HDR-VCB) for endometrial cancer.MATERIAL AND METHODS: This research included 19 patients who underwent laparoscopic surgery. They were treated with HDR-VCB and 2.5-3.5 cm diameter cylinders. Two successive computerized tomography (CT) scans were perform...
Source: Journal of Contemporary Brachytherapy - Category: Cancer & Oncology Authors: Source Type: research
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