Abstract：
OBJECTIVE:To determine the effect of breathing on the detection of small dense pulmonary nodules of threshold conspicuity by spiral computed tomography (SCT). MATERIALS AND METHODS:Forty pulmonary nodules of high density were created by endobronchial deployment of 2 and 4mm diameter beads in the peripheral airways of five anaesthetized dogs. SCT was performed during induced breath-hold and quiet breathing, using 5 mm collimation, pitch 2 and reconstruction of contiguous 5 mm slices. Scans were reviewed by six radiologists. Detection rates were measured as the number of nodules seen by at least one reader. The data was modelled using ordinal logistic regression for repeated measures, and the Wald Chi-square statistic used to test if there was a breath-hold vs. breathing effect on reader confidence level. RESULTS:There was no difference in detection rates for breath-hold vs. breathing SCT (28 vs. 25, respectively; P=0.48). This was also true when only the 2 mm nodules (n=24) were considered (12 vs. 11, respectively; P=0.77). Reader confidence level was significantly higher for breath-hold vs. breathing SCT (Wald Chi-square statistic with 6 degrees of freedom=19.0; P=0.0041). CONCLUSION:SCT can be performed during quiet breathing without a significant reduction the overall detection rate for small dense pulmonary nodules, though reader diagnostic confidence level is reduced.
journal_name
Clin Radioljournal_title
Clinical radiologyauthors
Coakley FV,Cohen MD,Johnson MS,Gonin R,Hanna MPdoi
10.1016/s0009-9260(98)80170-0subject
Has Abstractpub_date
1998-07-01 00:00:00pages
506-9issue
7eissn
0009-9260issn
1365-229Xjournal_volume
53pub_type
杂志文章abstract：AIM:Breast screening radiologists are under considerable pressure to maximize cancer detection and minimize the number of interval cancers. This study used screening films, previously reported as normal, taken before the development of an interval cancer. The aim was to determine the sensitivity and specificity of the ...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1053/crad.2001.0776
更新日期：2001-10-01 00:00:00
abstract：AIM:To investigate the diagnostic ability of maximum standardised uptake value (SUVmax) at combined single-photon-emission computed tomography/computed tomography (SPECT/CT) for the evaluation of osteonecrosis of the jaw. MATERIALS AND METHODS:Seven patients with mandibular osteonecrosis (three osteoradionecrosis, thr...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/j.crad.2019.05.025
更新日期：2020-01-01 00:00:00
abstract：:Aneurysm of the ductus arteriosus has been reported in children more frequently than in adults [1-4]. The rarity of the lesion explains the low rate of recognition by the radiologist, especially because symptoms are non-specific in most cases. Clinically and radiologically, aneurysm of the ductal diverticulum can be c...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(97)80279-6
更新日期：1997-03-01 00:00:00
abstract：:In a review of 127 urethrocystograms carried out on 92 males with spinal cord injury the following conclusions were drawn. (1) In the presence of vesico-ureteric reflux or urethral reflux into the male adnexa, bladder outlet obstruction should be suspected. (2) Lesions of the anterior urethra develop easily as the res...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(84)80066-5
更新日期：1984-11-01 00:00:00
abstract：AIM:To investigate the innervation pattern of extra-ocular muscles in patients with clinically diagnosed Duane's ocular retraction syndrome (DRS) using magnetic resonance imaging (MRI). MATERIALS AND METHODS:The study population consisted of 11 patients. Six patients had type I DRS (eight eyes), four patients had type...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/j.crad.2013.12.010
更新日期：2014-05-01 00:00:00
abstract：AIM:To assess the effect of changing from an "appointment" to a "same-day" ultrasound (US) service on referral pattern, departmental workload, and patient satisfaction. MATERIALS AND METHODS:To reduce US waiting time of 3 weeks for routine examinations, a "same-day" service was started for outpatients and general prac...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/j.crad.2009.09.009
更新日期：2010-01-01 00:00:00
abstract：:Two cases are reported in which accidental inhalation of barium contrast medium occurred owing to disordered swallowing in elderly women. In each case there was a pulmonary inflammatory reaction followed within a few hours by death. Experimental and clinical reports of barium inhalation are reviewed and the hazard of ...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(89)80135-7
更新日期：1989-07-01 00:00:00
abstract：AIM:To retrospectively evaluate the efficacy of embolotherapy in patients with iatrogenic traumatic uterine arteriovenous malformations (AVMs). MATERIALS AND METHODS:A retrospective review of all patients who underwent uterine arterial embolization in Peking Union Medical College Hospital between January 2000 and Dece...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/j.crad.2011.11.002
更新日期：2012-06-01 00:00:00
abstract：:We report a case of congenital cerebral glioblastoma. The initial antenatal ultrasound scan showed a peripheral area of high reflectivity within the right cerebral hemisphere. A subsequent scan showed that the area of high reflectivity had increased in size to completely fill the hemisphere, with shift of the falx and...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(05)80511-2
更新日期：1991-08-01 00:00:00
abstract：:T1-weighted magnetic resonance imaging (MRI) of the lower extremities was performed 5 years after the cessation of therapy on 25 children treated for acute lymphoblastic leukaemia (ALL). Signal intensity pathologies considered to be related with the leukaemia itself or the treatment of ALL were found in nine of 25 chi...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(98)80060-3
更新日期：1998-02-01 00:00:00
abstract：:The findings in 50 patients examined by computed tomography (CT) of the pituitary fossa are described. The appearances in 43 were judged to be abnormal, four were normal and three were 'doubtful'. Abnormal features included deviation of the pituitary stalk (seven), localised increased enhancement after intravenous inj...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(84)80094-x
更新日期：1984-07-01 00:00:00
abstract：:Currarino et al. in 1981 described an association between an anterior sacral defect, congenital anorectal stenosis or another type of low anorectal malformation and a presacral mass. We are only aware of one previous report in the English literature of the association of a rectovaginal fistula with this triad and to o...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(05)81859-8
更新日期：1994-04-01 00:00:00
abstract：:Two cases of squamous-cell carcinoma arising in dental cysts are presented. A review of the literature reveals that this is a rare condition and experience of treatment by radiotherapy is limited. The cases reported were controlled locally by external beam megavoltage radiotherapy with no significant long-term morbidi...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(85)80309-3
更新日期：1985-07-01 00:00:00
abstract：:Five adult females with swelling, tenderness and similar sclerotic changes of the sternal end of the clavicle are presented. They were recognised during a 10-year period, suggesting that the condition is rare and may be misdiagnosed. In three patients strain of the sternoclavicular joint seemed to be an aetiological f...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(85)80010-6
更新日期：1985-01-01 00:00:00
abstract：AIM:To evaluate the risk of cancer of an enhancing focus identified at breast magnetic resonance imaging (MRI) by determining the positive predictive value (PPV) associated with specific characteristics of an enhancing focus. MATERIALS AND METHODS:Retrospective, institutional review board-approved review of the databa...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/j.crad.2014.02.007
更新日期：2014-07-01 00:00:00
abstract：:Seventy-one patients with allograft dysfunction had concomitant Doppler sonography and percutaneous biopsy. Forty-one had biopsy proven acute cellular rejection and eight had acute cellular rejection in combination with acute tubular necrosis. Real time ultrasonic appearance and various parameters of Doppler waveform ...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(05)80168-0
更新日期：1992-10-01 00:00:00
abstract：AIM:Inflammatory abdominal aortic aneurysms (IAAA) are a variant of abdominal aortic aneurysms, which are associated with an increased morbidity. The diagnosis of IAAA has traditionally been established with a combination of clinical and laboratory findings together with contrast enhanced CT. There is a high incidence ...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1053/crad.1999.0442
更新日期：2000-02-01 00:00:00
abstract：:Magnetic resonance imaging (MRI), with its superior soft-tissue delineation, plays a pivotal role in the staging and surveillance of cancers affecting adult males, in particular, rectal, urinary bladder, and prostate cancers. There has been much recent interest in the complementary roles of diffusion-weighted imaging ...
journal_title：Clinical radiology
pub_type： 杂志文章,评审
doi：10.1016/j.crad.2012.01.016
更新日期：2012-09-01 00:00:00
abstract：AIM:To ascertain whether magnetic resonance imaging (MRI) can be used to suggest a diagnosis of endometrial carcinosarcoma. MATERIALS AND METHODS:A retrospective imaging review was performed of the MRI images of 39 patients with endometrial carcinosarcoma. Anteroposterior and longitudinal dimensions of the uterus and ...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/j.crad.2011.02.008
更新日期：2011-07-01 00:00:00
abstract：:A case of multifocal xanthogranulomatous pyelonephritis (XPN) in childhood diagnosed by ultrasound, computed tomography and needle biopsy is described. Following antibiotic therapy, ultrasound and a DMSA renal scintiscan showed no discernible scarring and restoration of function. This has not been previously described...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(05)81705-2
更新日期：1990-05-01 00:00:00
abstract：:A wide range of pathologies may arise from the submandibular space (SMS) or submandibular gland (SMG) in children. We review herein the normal anatomy of the SMS and describe the role of imaging in the evaluation of SMS lesions. A schematic approach for the categorisation of SMS pathology based on imaging characterist...
journal_title：Clinical radiology
pub_type： 杂志文章,评审
doi：10.1016/j.crad.2015.03.003
更新日期：2015-07-01 00:00:00
abstract：:Twenty-seven patients with a T1 or T2 N0M0 breast carcinoma were treated by local excision of the lump followed by radical radiotherapy, using orthovoltage X-rays. The crude survival rate was 100% at three years, 92% at five years, 95% at 10 years. The local recurrence rate was 8% at three years, 12% at five years, 10...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(81)80246-2
更新日期：1981-01-01 00:00:00
abstract：:An unusual case of multiple myeloma is reported in a 61-year-old man presenting with hepatomegaly and multiple hypoechoic lesions in the liver seen on ultrasound. Following cytotoxic chemotherapy the size and number of the lesions within the liver had significantly reduced. ...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(05)82970-8
更新日期：1995-01-01 00:00:00
abstract：:Intrascrotal masses in the adult are worrisome due to their possible malignancy. Most intratesticular masses are malignant whereas most extratesticular masses are benign. The differential diagnosis of intrascrotal cysts usually includes simple testicular cysts, intratesticular epidermoid and dermoid cysts, tunica albu...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(05)83198-8
更新日期：1995-08-01 00:00:00
abstract：:The heart and mediastinal structures can be overlooked at CT pulmonary angiogram (CTPA). This pictorial review will demonstrate the features of cardiac disease that may be evident on a CTPA. CTPA allows assessment of not only the pulmonary arteries for embolism, but also of the bronchi, lung parenchyma, mediastinum an...
journal_title：Clinical radiology
pub_type： 杂志文章,评审
doi：10.1016/j.crad.2004.07.005
更新日期：2005-01-01 00:00:00
abstract：:The radiological appearances of seven cases of rib tuberculosis are discussed. The combination of rib destruction and an extrapleural soft tissue opacity in an Asian immigrant makes tuberculosis a highly likely diagnosis. The presence of an associated fluctuant chest wall swelling, enables a diagnosis of tuberculosis ...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(80)80022-5
更新日期：1980-11-01 00:00:00
abstract：AIM:To compare readers' performance in detecting architectural distortion (AD) compared with other breast cancer types using digital mammography. MATERIALS AND METHODS:Forty-one experienced breast screen readers (20 US and 21 Australian) were asked to read a single test set of 30 digitally acquired mammographic cases....
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/j.crad.2015.10.009
更新日期：2016-01-01 00:00:00
abstract：:Lymphomas are generally considered tumours of lymph nodes, but up to 40% arise extranodally. This group shows distinctive pathological, radiological, and clinical features. Different subtypes of extranodal lymphoma may show sufficiently specific radiological features to be of significant value in both establishing a d...
journal_title：Clinical radiology
pub_type： 杂志文章,评审
doi：10.1016/j.crad.2008.11.001
更新日期：2009-06-01 00:00:00
abstract：AIM:To evaluate whether radiologists can accurately differentiate Wilms' tumours from other paediatric abdominal masses with renal involvement using modern imaging methods alone. METHODS:From February 1993 to June 1997, 23 patients presented to the Paediatric Oncology Service at The Royal Hospital for Sick Children, E...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(99)90563-9
更新日期：1999-05-01 00:00:00
abstract：:The commonest causes of nasal obstruction are rhinitis and chronic rhinosinusitis, which affect up to 30% and 14% of the adult population, respectively. The global financial burden is huge, estimated at $5 billion for rhinitis and $8.6 billion for chronic rhinosinusitis per annum in the USA. On referral for imaging, c...
journal_title：Clinical radiology
pub_type： 杂志文章,评审
doi：10.1016/j.crad.2019.07.027
更新日期：2020-09-01 00:00:00
