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Journal of Nuclear Medicine Technology

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https://www.readbyqxmd.com/read/28705931/proof-of-concept-design-and-initial-evaluation-of-a-new-device-to-measure-gastrointestinal-transit-time
#1
Robert H Wagner, Bital Savir-Baruch, James Halama, Mukund Venu, Medhat Gabriel, Davide Bova
Chronic constipation and gastrointestinal motility disorders constitute a large part of a gastroenterology practice and represent a significant impact on patient quality of life and lifestyle. In most cases, medications are prescribed to alleviate symptoms without an objective measurement of response. Commonly used current investigations of gastrointestinal transit times are limited to radiopaque markers or electronic capsules. Repeated use of these techniques is limited due to radiation exposure or the significant cost of the devices...
July 13, 2017: Journal of Nuclear Medicine Technology
https://www.readbyqxmd.com/read/28705930/influence-of-attenuation-correction-by-brain-perfusion-spect-ct-simulated-abnormal-bone-structure-comparison-between-chang-and-ct-methods
#2
Takayuki Shibutani, Masahisa Onoguchi, Nanako Miyamoto, Yasushi Yamamoto, Seigo Kinuya
Introduction: Brain perfusion single photon emission computed tomography (SPECT) has physical phenomena such as attenuation, scatter, and degradation of resolution that impair accuracy on data acquisition. Chang and computed tomography (CT) methods have spread application for attenuation correction (AC) and indicate the utility of AC using a brain phantom without a bone or with a normal bone structure. However, non-uniform AC of an abnormal bone structure such as postoperative bone defect following burr-hole surgery has not yet evaluated...
July 13, 2017: Journal of Nuclear Medicine Technology
https://www.readbyqxmd.com/read/28705929/use-of-tc-99m-tilmanocept-as-a-single-agent-for-sentinel-lymph-node-identification-in-breast-cancer-a-retrospective-pilot-study
#3
Jonathan Takei Unkart, Anne Marie Wallace
Introduction: Tc-99m tilmanocept (TcTM) received recent FDA-approval for lymphatic mapping. However, no prior studies have evaluated the use of TcTM as a single agent in sentinel lymph node (SLN) biopsy in breast cancer. Methods: We executed this retrospective, pilot study to assess the ability of TcTM to identify sentinel nodes as a single agent in clinically node-negative breast cancer patients. Patients received a single, intradermal injection overlying the tumor of either 0.5 mCi TcTM the day-of surgery or 2...
July 13, 2017: Journal of Nuclear Medicine Technology
https://www.readbyqxmd.com/read/28705928/miniaturized-radiochemical-purity-testing-for-99m-tc-hmpao-99m-tc-hmdp-and-99m-tc-tetrofosmin
#4
Ana de la Fuente, Roberta Zanca, Angela Gabriella Cataldi, Roberto Boni, Martina Sollini, Elena Lazzeri, Giuliano Mariani, Paola Anna Erba
Quick methods are functional in clinical practice in order to ensure the fastest availability of radiopharmaceuticals. For this purpose, we investigated the radiochemical purity of the widely used (99m)Tc-HMDP (hydroxymethylene diphosphonate), (99m)Tc-HMPAO (hexamethylpropyleneamine oxime) and (99m)Tc-Tetrofosmin by reducing time as compared to the manufacturer's method. Methods: We applied a miniaturized chromatographic method with a reduced strip development from 18 cm to 9 cm for all three radiopharmaceuticals...
July 13, 2017: Journal of Nuclear Medicine Technology
https://www.readbyqxmd.com/read/28705927/incidence-of-brain-metastases-on-follow-up-18-f-fdg-pet-ct-scans-of-non-small-cell-lung-cancer-patients-should-we-include-the-brain
#5
Emily Nia, Linda Garland, Naghmehossadat Eshghi, Benjamin Nia, Ryan Avery, Phillip Kuo
PURPOSE: The brain is the most common site of distant metastasis from lung cancer. Thus MRI of the brain at initial staging is routinely performed, but if this exam is negative a follow-up exam is often not performed. This study evaluates the incidence of asymptomatic brain metastases in non-small cell lung cancer patients detected on follow-uP(18)F- FDG PET/CT scans. MATERIALS AND METHODS: In this IRB approved retrospective review, all vertex to thigh (18)F- FDG PET/CT scans in patients with all subtypes of lung cancer from August 2014 to August 2016 were reviewed...
July 13, 2017: Journal of Nuclear Medicine Technology
https://www.readbyqxmd.com/read/28705926/incidental-nuclear-cardiology-findings-in-the-interpretation-of-myocardial-spect-imaging
#6
Razi Muzaffar, Osama Raslan, Fatma Ahmed, Leonard Goldfarb, Barbara Sterkel, Medhat M Osman
Myocardial SPECT imaging plays a crucial role in the diagnosis of coronary artery disease providing a non-invasive tool to monitor ischemia and infarction. The findings can have a profound impact in diagnosing and managing these patients. However, non-cardiac incidental findings on myocardial SPECT images can also impact the management of these patients. These non-cardiac subtleties are most often detected on the raw rotating images which are often overlooked. The intent of this pictorial essay is to illustrate several subtle non-cardiac abnormalities within nuclear cardiac imaging which can have an impact on patient management and follow-up...
July 13, 2017: Journal of Nuclear Medicine Technology
https://www.readbyqxmd.com/read/28611234/complex-regional-pain-syndrome-diagnosed-with-three-phase-bone-scan
#7
Harleen Kaur, Mitchel A Muhleman, Helena R Balon
In this report, we present a case of complex regional pain syndrome in a 55-year-old female in whom the diagnosis was made based on the bone scan findings. We also discuss the typical and atypical scintigraphic presentations of this entity, including pathophysiology and management.
June 13, 2017: Journal of Nuclear Medicine Technology
https://www.readbyqxmd.com/read/28611233/splenic-uptake-on-bone-scan
#8
Harleen Kaur, Mitchel Muhleman, Helena R Balon
We present a patient with splenic uptake on bone scan that was due to sickle cell disease. We also discuss other etiologies for this finding.
June 13, 2017: Journal of Nuclear Medicine Technology
https://www.readbyqxmd.com/read/28611232/nuclear-imaging-in-a-cardiac-paraganglioma
#9
Nada H Almenieir, Shawn Karls, Vilma Derbekyan, Robert Lisbona
We report a case of a cardiac paraganglioma in the right atrioventricular groove, where the use of different nuclear medicine studies aided in the diagnosis and management.
June 13, 2017: Journal of Nuclear Medicine Technology
https://www.readbyqxmd.com/read/28611231/validation-of-the-left-ventricular-ejection-fraction-with-iq-spect-system-in-small-heart-patients
#10
Hiroto Yoneyama, Takayuki Shibutani, Takahiro Konishi, Asuka Mizutani, Hashimoto Ryosuke, Masahisa Onoguchi, Koichi Okuda, Shinro Matsuo, Kenichi Nakajima, Kinuya Seigo
The IQ-SPECT system equipped with a multifocal (SMARTZOOM) collimator using an ordered subset conjugate gradient minimization (OSCGM) algorithm reduces the acquisition time of myocardial perfusion imaging (MPI) compared to conventional gamma cameras equipped with low-energy high-resolution (LEHR) collimators. We compared IQ-SPECT with a conventional single-photon emission computed tomography (SPECT) system for estimating the left ventricular ejection fraction (LVEF) in small-heart patients. Methods: The study group consisted of 98 consecutive patients who underwent a 1-day stress-rest MPI study with a (99m)Tc-labeled agent for preoperative risk assessment...
June 13, 2017: Journal of Nuclear Medicine Technology
https://www.readbyqxmd.com/read/28473462/reliability-of-a-scoring-system-used-for-qualitative-evaluation-of-lymphoscintigraphic-imaging-of-lower-extremities
#11
Mojgan Ebrahim, Irina Savitcheva, Rimma Axelsson
Introduction: Lymphoscintigraphy is an imaging technique to diagnose and characterize the severity of edema in upper and lower extremities. In lymphoscintigraphy a scoring system can increase ability of diagnostic differentiation but the use of any scoring system requires sufficient reliability. AIM: To determine inter- and intraobserver reliability of a proposed scoring system used for visual interpretation of lymphoscintigraphic imaging of lower extremities. Materials and Methods: Lymphoscintigrams in 81 persons were randomly selected from our database for retrospective evaluation...
May 4, 2017: Journal of Nuclear Medicine Technology
https://www.readbyqxmd.com/read/28473460/corneal-dose-reduction-using-a-bismuth-coated-latex-shield-over-the-eyes-during-brain-spect-ct
#12
Norikazu Matsutomo, Masaaki Fukunaga, Onishi Hideo, Tomoaki Yamamoto
Objective: This study aimed to determine whether a bismuth-coated latex shield (B-shield) could protect the eyes during brain SPECT/CT. Methods: A B-shield containing the heavy metal bismuth (0.15 mm lead equivalent) was placed over a cylindrical phantom and the eyes of a three-dimensional brain phantom filled with Tc-99m solution. Subsequently, phantoms with and without the B-shield were compared using SPECT/CT. The CT parameters were 30-200 mA and 130 kV. The dose reduction achieved by the B shield was measured using a pencil-shaped ionization chamber...
May 4, 2017: Journal of Nuclear Medicine Technology
https://www.readbyqxmd.com/read/28576933/the-value-of-experience-lessons-learned-and-pearls-of-wisdom-gathered
#13
EDITORIAL
Norman E Bolus
No abstract text is available yet for this article.
June 2017: Journal of Nuclear Medicine Technology
https://www.readbyqxmd.com/read/28576932/advancing-our-profession-in-exciting-and-challenging-times
#14
Sara G Johnson
No abstract text is available yet for this article.
June 2017: Journal of Nuclear Medicine Technology
https://www.readbyqxmd.com/read/28576931/erratum
#15
(no author information available yet)
No abstract text is available yet for this article.
June 2017: Journal of Nuclear Medicine Technology
https://www.readbyqxmd.com/read/28473461/nuclear-medicine-technologists-perception-and-current-assessment-of-quality-a-society-of-nuclear-medicine-and-molecular-imaging-technologist-section-survey
#16
REVIEW
April Mann, Mary Beth Farrell, Jessica Williams, Danny Basso
In 2015, the Society of Nuclear Medicine and Molecular Imaging Technologist Section (SNMMI-TS) launched a multiyear quality initiative to help prepare the technologist workforce for an evidence-based health-care delivery system that focuses on quality. To best implement the quality strategy, the SNMMI-TS first surveyed technologists to ascertain their perception of quality and current measurement of quality indicators. Methods: An internet survey was sent to 27,989 e-mail contacts. Questions related to demographic data, perceptions of quality, quality measurement, and opinions on the minimum level of education are discussed in this article...
June 2017: Journal of Nuclear Medicine Technology
https://www.readbyqxmd.com/read/28408704/changes-in-patterns-of-99m-tc-macroaggregated-albumin-use-between-2000-and-2015
#17
James A Ponto
Since the early 2000s, the method of evaluating pulmonary embolism has shifted from (99m)Tc-macroaggregated albumin (MAA) perfusion lung scans to CT angiography. (99m)Tc-MAA continues to be applied for patients with contraindications to CT angiography and for other uses. A reduced number of (99m)Tc-MAA particles is administered to patients with pulmonary hypertension or other risk factors. This study assessed the changing patterns of (99m)Tc-MAA use between 2000 and 2015 at a single institution by comparing snapshots of the procedures performed in those two years...
June 2017: Journal of Nuclear Medicine Technology
https://www.readbyqxmd.com/read/28408703/accuracy-of-82-rb-pet-ct-myocardial-perfusion-imaging-with-regadenoson-stress-including-3-year-clinical-outcomes
#18
Michael D Brophey, Irfan M Farukhi, Rosinda Castanon, Rosinda DeLaPena, Ledjona Bradshaw, Subhash Banerjee
The purpose of this study was to determine the clinical accuracy of (82)Rb PET/CT myocardial perfusion imaging (MPI) when performed with regadenoson stress in a U.S. Department of Veterans Affairs (VA) population of patients. Methods: The initial cohort of 480 patients undergoing vasodilator PET MPI with regadenoson stress at our institution from September 2009 through July 2010 was closely tracked for short-term outcomes based on correlation with invasive coronary catheterization. Long-term outcomes were determined by major adverse cardiac event rates based on data extraction from the electronic medical record and grouped by summed stress score (SSS) for a 3-y period...
June 2017: Journal of Nuclear Medicine Technology
https://www.readbyqxmd.com/read/28408702/a-bizarre-ring-artifact-on-spect-ct-images
#19
REVIEW
Sajid Bashir, Muhammad Shahbaz, Dilber Iqbal
We encountered a round artifact on images obtained with our SPECT/CT system: a small dark spot surrounded by a broad light ring. The artifact was due to a problem with the SPECT portion of the hybrid system and was successfully removed through servicing of the system. This case report describes this scanner-based artifact, which, to our knowledge, has not previously been reported in the literature.
June 2017: Journal of Nuclear Medicine Technology
https://www.readbyqxmd.com/read/28408701/mucoepidermoid-parotid-gland-tumor-found-on-follow-up-radioiodine-scan-for-differentiated-papillary-thyroid-cancer
#20
REVIEW
Chinna Naik, Sandip Basu
This report presents a case of focal uptake in the right parotid gland found on a follow-up whole-body radioiodine scan 1 y after successful ablation of differentiated papillary thyroid carcinoma. After the parotid tumor had been excised, it was proven histopathologically to be a low-grade mucoepidermoid tumor. This case illustrates a (131)I focus that was false-positive for thyroid carcinoma. The short period between radioiodine treatment and development of this parotid tumor creates doubt about a causal relationship...
June 2017: Journal of Nuclear Medicine Technology
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