Abstract：
OBJECTIVE:To examine the rationale for and necessity of adjusting the film focal distance when X-ray angulation is employed during a radiographic study, and to determine the sensitivity of human interpreters to overall differences in film density and the correlation, if any, with digital analysis of radiographic films. DESIGN AND SETTING:The study was performed in the radiology department at Logan College of Chiropractic in St. Louis, Missouri. A standard X-ray phantom of the hand and wrist and several aluminum step wedges were exposed from 10% to 250% of baseline exposure intensity using equipment commonly found in a field doctor's practice. EVALUATION:The films were independently rated for overall image quality on a visual analog scale by five board-certified chiropractice radiologists. The films were also digitized, and selected regions analyzed on a computer. RESULTS:The panel of radiologists was able to consistently grade exposure intensity differences of approximately 10% relative change between films. The perceived density was directly proportional to the logarithm of the exposure intensity, as would be predicted from theoretical film response characteristics. The range of "acceptable" image quality was determined to lie between -40% and +60% of the baseline technique. CONCLUSIONS:This study validated the empirically derived tube tilt correction factor of 1 in of vertical adjustment per 5 degrees of tube angulation for tube tilts greater than or equal to 20 degrees. Underexposure impaired the interpretation of radiographs more than overexposure. Experienced human observers were able to reliably discriminate exposure differences on the order of 10% relative change when presented with complex grey-scale images, such as plain film radiographs.
journal_name
J Manipulative Physiol Therjournal_title
Journal of manipulative and physiological therapeuticsauthors
Andersen KK,Carstensen HMsubject
Has Abstractpub_date
1998-05-01 00:00:00pages
246-51issue
4eissn
0161-4754issn
1532-6586journal_volume
21pub_type
杂志文章abstract：:A 29-year-old male tennis player was examined for neck pain, limited mobility, and right elbow pain. The patient was treated for cervical facet syndrome by chiropractic manipulative therapy (CMT) for a period of 6 weeks. After this time the patient had a relapse of cervical pain, spinal myofascitis, dermatitis and mig...
journal_title：Journal of manipulative and physiological therapeutics
pub_type： 杂志文章
doi：
更新日期：1990-07-01 00:00:00
abstract：OBJECTIVE:When designing prediction models by complete case analysis (CCA), missing information in either baseline (predictors) or outcomes may lead to biased results. Multiple imputation (MI) has been shown to be suitable for obtaining unbiased results. This study provides researchers with an empirical illustration of...
journal_title：Journal of manipulative and physiological therapeutics
pub_type： 杂志文章
doi：10.1016/j.jmpt.2012.07.002
更新日期：2012-07-01 00:00:00
abstract：OBJECTIVE:The aim of this study was to evaluate body posture and the distribution of plantar pressure at physiologic rest of the mandible and during maximal intercuspal positions in subjects with and without temporomandibular disorder (TMD). METHODS:Fifty-one subjects were assessed by the Diagnostic Criteria for Resea...
journal_title：Journal of manipulative and physiological therapeutics
pub_type： 杂志文章
doi：10.1016/j.jmpt.2014.04.003
更新日期：2014-07-01 00:00:00
abstract：PURPOSE:To investigate differences in cervical spine posture and range of motion and self-reported neck pain and headache between patients with nontoxic goiter compared with a matched control group. DESIGN:An observational, controlled, blinded study. SETTING:The ambulatory outpatient facility of a university hospital...
journal_title：Journal of manipulative and physiological therapeutics
pub_type： 杂志文章
doi：
更新日期：1998-11-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to investigate whether grade III passive lumbar rotational mobilization on L2-3 can improve hip flexor strength and performance in the single-leg triple-hop test in asymptomatic young adults. METHODS:Twenty-four participants (12 men, 12 women) aged from 19 to 26 years who were p...
journal_title：Journal of manipulative and physiological therapeutics
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.jmpt.2017.07.003
更新日期：2017-10-01 00:00:00
abstract：OBJECTIVE:Good communication between health care professionals has proved to be important in ensuring high standards of care. Patients have shown an increased use of complementary medicine (eg, chiropractic) in addition to conventional medicine. However, this does not automatically guarantee good cooperation and commun...
journal_title：Journal of manipulative and physiological therapeutics
pub_type： 杂志文章
doi：10.1067/mmt.2001.112016
更新日期：2001-01-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to determine influences of cervical spine positions, turning times, and cervical segments on cadaver intradiscal pressure (IDP) during cervical spinal manipulative therapy (SMT). METHODS:We simulated cervical SMT with stretching and rotation on 7 fresh adult cadaver specimens in...
journal_title：Journal of manipulative and physiological therapeutics
pub_type： 杂志文章
doi：10.1016/j.jmpt.2012.06.005
更新日期：2012-07-01 00:00:00
abstract：OBJECTIVE:This case report discusses the treatment of 2 patients with cervicogenic headache (CHA) attending the Outpatient Clinic of the Hungarian National Institute for Rheumatology and Physiotherapy (Budapest, Hungary) and reviews the pathophysiology, therapeutic strategy, and problems associated with the treatment o...
journal_title：Journal of manipulative and physiological therapeutics
pub_type： 杂志文章,评审
doi：10.1016/j.jmpt.2009.08.006
更新日期：2009-09-01 00:00:00
abstract：OBJECTIVES:The purpose of this study was to characterize the force-time profile of the McTimoney toggle-torque-recoil (MTTR) technique. METHODS:Two licensed chiropractors trained in the McTimoney Method applied MTTR thrusts to a tabletop where a dynamic load cell had been mounted. Each clinician applied 10 thrusts (5 ...
journal_title：Journal of manipulative and physiological therapeutics
pub_type： 杂志文章
doi：10.1016/j.jmpt.2009.04.005
更新日期：2009-06-01 00:00:00
abstract：:Hyaline articular cartilage from 102 thoracolumbar junction zygapophyseal joints was examined using light microscopy. One section from the upper, middle and lower third of each joint at the T10-11, T11-12, T12-L1 and L1-2 spinal levels was photographed using 35 mm color film. Hyaline articular cartilage cross-sectiona...
journal_title：Journal of manipulative and physiological therapeutics
pub_type： 杂志文章
doi：
更新日期：1990-05-01 00:00:00
abstract：OBJECTIVE:To investigate (1) whether thoracolumbar posteroanterior (PA) stiffness differs between 2 conditions of ribcage movement: unconstrained and constrained, and (2) whether the effect of ribcage constraint on PA stiffness varies according to where the PA force is applied. DESIGN:Two-factor within-subjects design...
journal_title：Journal of manipulative and physiological therapeutics
pub_type： 杂志文章
doi：10.1016/S0161-4754(02)54131-2
更新日期：2003-03-01 00:00:00
abstract：:Preference for treatment protocols used in the care of spine disorders are based more upon clinical impressions than upon systematic study of the pathology or treatment efficacy. As social emphasis moves to cost containment strategies, quantitative data is necessary to give guidance for rational policy decisions. This...
journal_title：Journal of manipulative and physiological therapeutics
pub_type： 杂志文章
doi：
更新日期：1992-01-01 00:00:00
abstract：:A very rare case of traumatic avulsion fracture of the fabella in a middle-age lady, presented as intermittent posterolateral localized knee pain accentuated by compression against the lateral femoral condyle and by active and passive knee extension, is illustrated. The accumulated chronic microtrauma of the osteoarth...
journal_title：Journal of manipulative and physiological therapeutics
pub_type： 杂志文章
doi：
更新日期：1988-10-01 00:00:00
abstract：INTRODUCTION:The purpose of this systematic review was to examine literature on workplace factors associated with neck pain or symptoms in computer users performing clerical functions. METHODS:A systematic search of the Cochrane, Medline, CINAHL, and EMBASE databases was conducted for observational and experimental st...
journal_title：Journal of manipulative and physiological therapeutics
pub_type： 杂志文章
doi：10.1016/j.jmpt.2018.01.005
更新日期：2018-01-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to compare the cross-sectional area of the sciatic nerve in different positions of spinal manipulation using flexion-distraction technique. METHODS:Thirty healthy participants were assessed in 6 different flexion-distraction technique positions of varying lumbar, knee, and ankle...
journal_title：Journal of manipulative and physiological therapeutics
pub_type： 杂志文章
doi：10.1016/j.jmpt.2019.03.003
更新日期：2019-02-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to perform an interexaminer reliability evaluation of the prone leg length analysis procedure. METHODS:Two chiropractors each examined a series of 45 patients with a history of low back pain. Patients were in the prone position, with the knees in both extended and flexed positio...
journal_title：Journal of manipulative and physiological therapeutics
pub_type： 杂志文章
doi：10.1016/j.jmpt.2007.07.001
更新日期：2007-09-01 00:00:00
abstract：OBJECTIVE:To discuss intraspinal synovial cysts caused by degenerative changes involving the posterior articular facets in the lumbar spine and to provide differential considerations for patients with low-back pain. CLINICAL FEATURES:A 70-year-old man with low-back and gluteal pain demonstrating eventual progression o...
journal_title：Journal of manipulative and physiological therapeutics
pub_type： 杂志文章
doi：
更新日期：2000-05-01 00:00:00
abstract：OBJECTIVE:A widely accepted theoretical model suggests that vertebral hypomobility can cause pain and abnormal spinal mechanics because of changes in sensory input from spinal and paraspinal tissues. The purpose of this pilot study was 3-fold: (1) to make a preliminary determination if chronic vertebral hypomobility at...
journal_title：Journal of manipulative and physiological therapeutics
pub_type： 杂志文章
doi：10.1016/j.jmpt.2007.04.007
更新日期：2007-06-01 00:00:00
abstract：OBJECTIVE:This study evaluated the effects of spinal manipulation on spatiotemporal flexion-relaxation phenomenon parameters in individuals with chronic low back pain. METHODS:Twenty-seven adults with chronic low back pain participated in this study and first performed a block of 5 complete trunk flexion-extensions. T...
journal_title：Journal of manipulative and physiological therapeutics
pub_type： 杂志文章
doi：10.1016/j.jmpt.2009.02.010
更新日期：2009-03-01 00:00:00
abstract：BACKGROUND:There is a need for radiology educational outcome measures that evaluate clinical competency. This is the first of two articles introducing a clinical competency examination in radiology. This first article describes the evolution and structure of the examination. The second article presents the results of t...
journal_title：Journal of manipulative and physiological therapeutics
pub_type： 杂志文章
doi：10.1016/s0161-4754(99)70109-0
更新日期：1999-02-01 00:00:00
abstract：OBJECTIVE:The main objective of the study was to measure the levels of plasma β-endorphin (PB) and plasma cortisol (PC) under lumbar core stabilization exercise (LCSE), placebo and control conditions in patients with chronic nonspecific low back pain. METHODS:Twenty-four participants with chronic nonspecific low back ...
journal_title：Journal of manipulative and physiological therapeutics
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.jmpt.2018.01.002
更新日期：2018-01-01 00:00:00
abstract：OBJECTIVE:To determine the reproducibility of patient positioning on radiographically evaluated static configurations of the human pelvis. DESIGN:Repeat anteroposterior radiography of the human pelvis was performed in vivo. Comparative examinations were performed after 1 hr in one subject pool. A second sample underwe...
journal_title：Journal of manipulative and physiological therapeutics
pub_type： 杂志文章
doi：
更新日期：1993-10-01 00:00:00
abstract：OBJECTIVES:In this observational study, we evaluated the effects of chest and neck mobilization on spirometric parameters in healthy subjects. METHODS:We conducted an observational, quantitative, and experimental study in a sample of 100 healthy subjects. We evaluated spirometric parameters before and after pompage mo...
journal_title：Journal of manipulative and physiological therapeutics
pub_type： 杂志文章
doi：10.1016/j.jmpt.2011.08.004
更新日期：2011-11-01 00:00:00
abstract：OBJECTIVE:To investigate the relationship between the right and left foot posture in terms of body mass index (BMI), sex, and age in adolescents aged 10 to 14. METHODS:A total of 1400 adolescents were included. For assessment, the Foot Posture Index (FPI-6) was used. Each foot was assessed and ranked as supinated, nor...
journal_title：Journal of manipulative and physiological therapeutics
pub_type： 杂志文章
doi：10.1016/j.jmpt.2018.11.035
更新日期：2020-09-01 00:00:00
abstract：OBJECTIVE:To present the diagnosis and differential diagnosis of diabetic polyneuropathy and report a case in which a patient with this disorder was successfully managed utilizing chiropractic procedures. CLINICAL FEATURES:An 80-year-old man with a history of diabetes mellitus complained of low back pain along with bu...
journal_title：Journal of manipulative and physiological therapeutics
pub_type： 杂志文章
doi：
更新日期：1994-01-01 00:00:00
abstract：OBJECTIVE:The objective of this study was to measure the interexaminer reliability of scoring pain distribution using paper and electronic body pain diagrams in patients with acute whiplash-associated disorder and to assess the intermethod reliability of measuring pain distribution and location using paper and electron...
journal_title：Journal of manipulative and physiological therapeutics
pub_type： 杂志文章
doi：10.1016/j.jmpt.2013.05.023
更新日期：2013-09-01 00:00:00
abstract：OBJECTIVE:To discuss the chiropractic management of a patient who sustained a unilateral lamina fracture of the sixth cervical vertebra. CLINICAL FEATURES:The patient had suffered cervical trauma from a motor vehicle accident. Clinical evaluation revealed acute global neck pain with associated left arm radiculitis and...
journal_title：Journal of manipulative and physiological therapeutics
pub_type： 杂志文章
doi：
更新日期：1997-02-01 00:00:00
abstract：OBJECTIVE:To describe the origins of the anteroposterior (AP) open-mouth radiograph. METHODS:Searches in PubMed, standard radiography texts, and telephone interviews. RESULTS:The AP open-mouth radiograph has a long history of use in the chiropractic and medical professions. The view is taken to assess the upper cervi...
journal_title：Journal of manipulative and physiological therapeutics
pub_type： 历史文章,杂志文章
doi：10.1016/j.jmpt.2004.08.004
更新日期：2004-10-01 00:00:00
abstract：OBJECTIVE:Nerve palpation is a method of clinically identifying mechanosensitivity of neural tissue by means of pressure algometry and manual palpation. There are few investigations of the reliability of lower limb nerve palpation, and femoral nerve palpation has never been previously reported. The aim of this study wa...
journal_title：Journal of manipulative and physiological therapeutics
pub_type： 杂志文章
doi：10.1016/j.jmpt.2013.12.006
更新日期：2014-02-01 00:00:00
abstract：OBJECTIVE:The purpose of this clinical study was to compare the immediate- and short-term effects of lumbar Mulligan sustained natural apophyseal glides (SNAGs) on patients with nonspecific low back pain with respect to 2 new kinematic algorithms (KA) for range of motion and speed as well as pain, functional disability...
journal_title：Journal of manipulative and physiological therapeutics
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.jmpt.2015.06.013
更新日期：2015-07-01 00:00:00
