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Lung imaging

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https://www.readbyqxmd.com/read/29785934/imaging-modalities-in-the-etiologic-evaluation-of-unilateral-vocal-fold-paralysis
#1
Suat Bilici, Muhammet Yildiz, Ozgur Yigit, Esra Misir
OBJECTIVE: This study aimed to investigate the roles of computed tomography (CT) and neck ultrasonography (US) in evaluating unilateral vocal fold paralysis (UVFP) of unknown etiology and to compare our results with those of other studies to assess the differences in etiology of UVFP. METHODS: We investigated the medical records of 202 eligible patients with UVFP. In total, 168 underwent chest CT, 118 underwent neck CT, and 108 underwent head CT. One hundred and three patients were also evaluated with high-resolution neck US...
May 18, 2018: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/29785839/optimization-of-a-secondary-voi-protocol-for-lung-imaging-in-a-clinical-ct-scanner
#2
Thomas C Larsen, Vissagan Gopalakrishnan, Jianhua Yao, Catherine P Nguyen, Marcus Y Chen, Joel Moss, Han Wen
We present a solution to meet an unmet clinical need of an in-situ "close look" at a pulmonary nodule or at the margins of a pulmonary cyst revealed by a primary (screening) chest CT while the patient is still in the scanner. We first evaluated options available on current whole-body CT scanners for high resolution screening scans, including ROI reconstruction of the primary scan data and HRCT, but found them to have insufficient SNR in lung tissue or discontinuous slice coverage. Within the capabilities of current clinical CT systems, we opted for the solution of a secondary, volume-of-interest (VOI) protocol where the radiation dose is focused into a short-beam axial scan at the z position of interest, combined with a small-FOV reconstruction at the xy position of interest...
May 21, 2018: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/29785317/a-rare-case-of-penile-metastases-as-a-harbinger-of-primary-pulmonary-adenosquamous-carcinoma
#3
Partha Hota, Tejas N Patel, Xiaofeng Zhao, Carrie Schneider, Omar Agosto
Although lung cancer has a high propensity for distant metastatic disease, penile metastases from primary lung neoplasms are considered particularly rare. A 71-year-old male presented to our hospital with a rapidly enlarging hard palpable penile mass. MR imaging demonstrated two penile masses centered in the left and right corpus cavernosa. Subsequent CT imaging revealed a spiculated pulmonary mass in the right upper lobe with PET/CT, MRI, and surgical exploration, demonstrating evidence of metastases to the left adrenal gland, right subscapularis muscle, brain, and small bowel...
2018: Case Reports in Radiology
https://www.readbyqxmd.com/read/29785298/impact-of-near-infrared-angiography-on-the-quality-of-anatomical-resection-during-video-assisted-thoracic-surgery-segmentectomy
#4
Benoît Bédat, Frédéric Triponez, Samira Mercedes Sadowski, Christophe Ellenberger, Marc Licker, Wolfram Karenovics
Background: The aim of the present study was to assess the impact of near-infrared angiography in guiding intraoperatively sublobar anatomical resection by video-assisted thoracic surgery (VATS). Methods: We retrospectively analyzed data from 67 patients who underwent segmentectomy by VATS from November 2014 to November 2017 at the University Hospitals of Geneva, Switzerland. The need to modify arterial or parenchymal resection based on intraoperative near-infrared imaging was considered the primary study outcome...
April 2018: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29785297/determination-of-the-intersegmental-plane-using-the-slip-knot-method
#5
Makoto Endoh, Hiroyuki Oizumi, Hirohisa Kato, Jun Suzuki, Hikaru Watarai, Akira Hamada, Katsuyuki Suzuki, Kenta Nakahashi, Mitsuaki Sadahiro
Background: Visualization of intersegmental planes in the lung is desirable for precise anatomical lung segmentectomy. We developed the slip-knot method for creating inflation-deflation lines. This study aimed to assess relevant data for thoracoscopic segmentectomy performed using this method. Methods: In the slip-knot method, the objective segmental bronchus is looped with a monofilament thread. One end of the thread is then pulled during temporary bilateral ventilation, causing the knot to slip toward the bronchus...
April 2018: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29785294/development-of-a-precision-multimodal-surgical-navigation-system-for-lung-robotic-segmentectomy
#6
Jean Marc Baste, Valentin Soldea, Samy Lachkar, Philippe Rinieri, Mathieu Sarsam, Benjamin Bottet, Christophe Peillon
Minimally invasive sublobar anatomical resection is becoming more and more popular to manage early lung lesions. Robotic-assisted thoracic surgery (RATS) is unique in comparison with other minimally invasive techniques. Indeed, RATS is able to better integrate multiple streams of information including advanced imaging techniques, in an immersive experience at the level of the robotic console. Our aim was to describe three-dimensional (3D) imaging throughout the surgical procedure from preoperative planning to intraoperative assistance and complementary investigations such as radial endobronchial ultrasound (R-EBUS) and virtual bronchoscopy for pleural dye marking...
April 2018: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29785291/using-novel-technology-to-augment-complex-video-assisted-thoracoscopic-single-basilar-segmentectomy
#7
Zaid M Abdelsattar, Shanda H Blackmon
There are many novel technologies that enable complex segmentectomy to be performed. As lung cancer screening becomes more prevalent, patients are increasingly diagnosed with early stage lung cancer, multifocal disease, and second primary tumors. This shift to an earlier clinical presentation combined with advances in technology and an emphasis on minimally invasive techniques have led to the current developments we are now seeing with anatomic segmentectomy. In this paper, we describe the operative technique of an indocyanine green (ICG)-guided video-assisted thoracoscopic surgery (VATS) single basilar segmental resection, augmented with methylene blue dye marker localization via SuperDimension electromagnetic navigational bronchoscopy...
April 2018: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29785288/t1a-lung-carcinoma-the-place-of-segmentectomy-in-the-treatment-array
#8
Sameer A Hirji, Scott J Swanson
Contemporary management of early stage non-small cell lung cancer (NSCLC) is evolving and can be attributed to a change in size and histology of lung cancer, advancements in imaging modalities, instrumentation and surgical techniques. The emergence of segmentectomy has further challenged the existing treatment landscape, with promising results. Despite limited widespread adoption, video-assisted thoracoscopic surgery (VATS) segmentectomy is a safe option in the treatment of patients with small stage I lung cancers, with excellent oncologic results and improved morbidity relative to open techniques...
April 2018: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29785287/lymph-node-dissection-during-sublobar-resection-why-when-and-how
#9
REVIEW
Pascal-Alexandre Thomas
Appropriate lymph node (LN) assessment is a hallmark of surgical quality of curative intent operations for non-small cell lung cancer (NSCLC). Even in the era of extensive pre-treatment work-up including routine PET-scanning and brain imaging, and selective invasive LN evaluation, unexpected LN metastases are found at surgery in more than 10% of patients with a cT1aN0 tumor. Systematic lymphadenectomy minimizes the risk of leaving tumor-LN behind and thus the risk of an incomplete resection, and provides the most truthful pTNM, which is decisive in directing adjuvant chemotherapy...
April 2018: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29784358/short-probe-based-duplex-specific-nuclease-signal-amplification-strategy-enables-imaging-of-endogenous-micrornas-in-living-cells-with-ultrahigh-specificity
#10
Yingjun Ma, Jun Chen, Danping Chen, Yuzhi Xu, Li Zhang, Zong Dai, Xiaoyong Zou
Specific nucleic acids amplification at a constant and mild temperature is important for imaging assay of endogenous microRNAs (miRNAs) in living cells. Duplex-specific nuclease (DSN) is attractive in one-step isothermal assay of miRNA; however, its intrinsic limitations of low amplification specificity and high reaction temperature greatly restrict the application scope. Herein, we present a short-probe-based DSN signal amplification (spDSNSA) strategy enabling analysis of miRNAs at body temperature with significantly high specificity...
August 15, 2018: Talanta
https://www.readbyqxmd.com/read/29783881/lemierre-s-syndrome-a-case-study-with-a-short-review-of-literature
#11
Ken De Smet, Paul-Emile Claus, Gudrun Alliet, An Simpelaere, Geert Desmet
Objective and Importance Lemierre's syndrome (LS) is a rare condition that typically starts with a bacterial oropharyngeal infection complicated by a thrombophlebitis of the internal jugular vein and septic emboli to the lungs or other organs. The most common organism isolated is Fusobacterium necrophorum, although other causative organisms are isolated in rare cases. Case presentation We discuss a case of LS in a 44-year-old, previously healthy man presenting with an oropharyngeal infection. F. necrophorum was isolated from blood cultures and Computed tomography of the chest demonstrated septic emboli in the lungs...
May 21, 2018: Acta Clinica Belgica
https://www.readbyqxmd.com/read/29782307/cutaneous-manifestations-of-tuberous-sclerosis
#12
Mirjana Bakić, Marina Ratković, Branka Gledović, Balsa Vujović, Danilo Radunović, Vera Babić, Vladimir Prelević
Dear Editor, Tuberous sclerosis (TS) is an autosomal dominant multisystem disease, which occurs due to genetically determined hyperplasia of ectodermal and mesodermal cells. Clinical manifestations present on the skin and in the nervous system, kidneys, heart, and other organs. Recent studies estimate the incidence of TS at 1/6000 to 1/10,000 live births, and a prevalence in the general population of approximately 1 in 20,000 (1). There are two different genetic loci responsible for TS: 9q34 (TSC1-hamartin) and 16p13...
April 2018: Acta Dermatovenerologica Croatica: ADC
https://www.readbyqxmd.com/read/29781332/a-novel-phenolic-propanediamine-moiety-based-lung-targeting-therapy-for-asthma
#13
Jianbo Li, Yang Yang, Didi Wan, Youmei Peng, Jinjie Zhang
Asthma is one of the most prevalent chronic inflammatory diseases of lung. Current asthma therapy using inhaled corticosteroid often results in undesired treatment outcome due to poor compliance and drugs' lack of tissue specificity. N,N,N'-trimethyl-N'-(2-hydroxyl-3-methyl-5-123 Iiodobenzyl)-1,3-propanediamine (HIPD), a phenolic propanediamine derivative, has been used as an imaging agent for localized pulmonary diseases. Inspired by this, N,N,N'-trimethyl-N'-(4-hydroxyl-benzyl)-1,3-propanediamine (TPD), a new HIPD analog, was proposed as a lung-targeting ligand and covalently conjugated to an anti-inflammatory compound Rhein for asthma therapy...
November 2018: Drug Delivery
https://www.readbyqxmd.com/read/29781194/paraneoplastic-autoimmune-encephalitis-associated-with-pleomorphic-lung-carcinoma-an-autopsy-case-report
#14
Takashi Ando, Yoji Goto, Kazuo Mano, Fumio Nomura, Masako Kurashige, Masafumi Ito, Maya Mimuro, Yasushi Iwasaki, Masahisa Katsuno, Mari Yoshida
A 64-year-old man was admitted with acute onset disturbed consciousness. Cerebrospinal fluid analysis revealed pleocytosis and elevated protein, with negative cultures and PCR. Serum antibodies for autoimmune encephalitis were also negative. Brain magnetic resonance imaging (MRI) was unremarkable, but whole-body CT scan showed a tumor in the left lower lung lobe. Bronchial brush cytology demonstrated clusters of malignant cells, and 18 F-fluorodeoxyglucose positron emission tomography showed multiple lesions and increased uptake in the lung tumor...
May 20, 2018: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/29780885/a-simple-bioluminescence-imaging-method-for-studying-cancer-cell-growth-and-metastasis-after-subcutaneous-injection-of-lewis-lung-carcinoma-cells-in-syngeneic-c57bl-6-mice
#15
Hong Zhu, Megan E Kauffman, Michael A Trush, Zhenquan Jia, Y Robert Li
In vivo imaging of cancer cell growth and invasion is instrumental in studying cancer cell behavior and in developing effective anticancer agents. In this ROS Protocols article, we report the experimental protocol and steps involving the implantation of luciferase-expressing Lewis lung carcinoma (LLC) cells in normal syngeneic C57BL/6 mice. Using the Berthold NightOwl LB981 in vivo imaging system, we observe the time-dependent growth and invasion of the lung cancer cells following subcutaneous injection of luciferase-expressing LLC cells...
March 2018: Reactive Oxygen Species (Apex, N.C.)
https://www.readbyqxmd.com/read/29780637/recent-developments-in-minimally-invasive-surgery-for-biopsy-of-small-pulmonary-nodules
#16
REVIEW
Long Jiang, Jianxing He
Following the development of radiological technology, there has been an increase in the number of pulmonary nodules found. The management of pulmonary nodules represents a specific challenge to thoracic surgeons. Pulmonary nodules are small, focal, rounded radiographic opacities that may be solitary or multiple. The definite histopathologic diagnosis is crucial in determining management ranging from interval imaging to surgical resection. The choice of a particular biopsy technique depends on the risks/benefits of the procedure, the diagnostic yield, and local expertise...
April 2018: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29780627/a-new-approach-to-predict-lymph-node-metastasis-in-solid-lung-adenocarcinoma-a-radiomics-nomogram
#17
Xinguan Yang, Xiaohuan Pan, Hui Liu, Dashan Gao, Jianxing He, Wenhua Liang, Yubao Guan
Background: Lymph node metastasis (LNM) of lung cancer is an important factor related to survival and recurrence. The association between radiomics features of lung cancer and LNM remains unclear. We developed and validated a radiomics nomogram to predict LNM in solid lung adenocarcinoma. Methods: A total of 159 eligible patients with solid lung adenocarcinoma were divided into training (n=106) and validation cohorts (n=53). Radiomics features were extracted from venous-phase CT images...
April 2018: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29780046/-study-of-dose-recalculation-method-on-overriding-lung-density-using-cbct-image-in-the-thorax
#18
Hiroshi Watanabe, Shuichi Ozawa, Atsuyuki Ohashi, Koji Ikenaga, Kentaro Miki, Akito Saito, Teiji Nishio, Yuji Murakami, Yasushi Nagata
It is a useful method for the adaptive radiotherapy (ART) to calculate absorbed dose accurately on the image set taken by on-board cone beam computed tomography (CBCT) attached to linac for image-guided radiation therapy (IGRT). For this purpose, a simple and accurate calculation method is necessary. Several papers report that it is possible to calculate easily and accurately by using several methods of researches in the neck and prostate, but the lung density varies greatly depending on patient thorax condition...
2018: Nihon Hoshasen Gijutsu Gakkai Zasshi
https://www.readbyqxmd.com/read/29780044/-effect-of-misregistration-between-spect-and-ct-images-on-attenuation-correction-for-quantitative-bone-spect-imaging
#19
Mika Sakoshi, Norikazu Matsutomo, Tomoaki Yamamoto, Eisuke Sato
PURPOSE: The aim of this study was to evaluate the effect of misregistration between single-photon emission computed tomography (SPECT) and computed tomography (CT) images on bone SPECT. METHODS: We acquired SPECT and CT images of a body phantom filled with bone-equivalent solution and 99m Tc for evaluation of bone SPECT. SPECT images were reconstructed using attenuation correction maps obtained by shifting the attenuation coefficients from non-shifted values (reference)...
2018: Nihon Hoshasen Gijutsu Gakkai Zasshi
https://www.readbyqxmd.com/read/29779887/pulmonary-capillary-hemorrhage-induced-by-diagnostic-ultrasound-in-ventilated-rats
#20
Douglas L Miller, Zhihong Dong, Chunyan Dou, Krishnan Raghavendran
Pulmonary capillary hemorrhage (PCH) can be induced by diagnostic ultrasound-a potential safety issue. Anesthetized rats were intubated for intermittent positive-pressure ventilation (IPPV) with 0 end-expiratory pressure, +4 cm H2 O end-expiratory pressure (PEEP) and -4 cm H2 O end-expiratory pressure (NEEP). Rats were imaged at 7.6 MHz with a Philips HDI 5000 ultrasound machine. The output was low (mechanical index [MI] = 0.22) for aiming and then was raised for 5 min in 20 different exposure groups with n = 8...
May 17, 2018: Ultrasound in Medicine & Biology
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