Magnetic resonance imaging of breast cancer: does the time interval between biopsy and MRI influence MRI-pathology discordance in lesion sizing?
Abstract BACKGROUND: Breast magnetic resonance imaging (MRI) is more accurate than ultrasound and mammography in estimating local extension of both invasive breast cancer and ductal carcinoma in situ (DCIS) and it is part of a breast cancer patient's preoperative management. PURPOSE: To verify if time interval between breast biopsy and preoperative MRI, lesion margins, and biopsy technique can influence tumor sizing on MRI. MATERIAL AND METHODS: By a database search, we retrospectively identified all women with a newly diagnosed, biopsy-proven, primary breast cancer who underwent MRI before surgery. The ...
Source: Acta Radiologica - October 26, 2016 Category: Radiology Authors: Mennella S, Paparo F, Revelli M, Baccini P, Secondini L, Barbagallo S, Friedman D, Garlaschi A Tags: Acta Radiol Source Type: research

Incidence of combined cranial and cervical spine injuries in patients with blunt minor trauma: are combined CT examinations of the head and cervical spine justified?
CONCLUSION: The paradigm of the coincidence of cranial and cervical spine injuries should be revised in patients with blunt minor trauma. Valid imaging decision algorithms are strongly needed to clinically detect high-risk patients in order to save limited resources. PMID: 27754918 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - October 17, 2016 Category: Radiology Authors: Vahldiek JL, Thieme S, Hamm B, Niehues SM Tags: Acta Radiol Source Type: research

Plugged percutaneous biopsy of the liver in living-donor liver transplantation recipients suspected to have graft rejection.
CONCLUSION: PPB is easy and safe to perform in LDLT recipients and provides high diagnostic yield. PMID: 27754919 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - October 17, 2016 Category: Radiology Authors: Kim SJ, Won JH, Kim YB, Wang HJ, Kim BW, Kim H, Kim J Tags: Acta Radiol Source Type: research

MR and mammographic imaging features of HER2-positive breast cancers according to hormone receptor status: a retrospective comparative study.
Abstract BACKGROUND: Human epidermal growth factor receptor 2-positive (HER2+) breast cancer has two distinct subtypes according to hormone receptor (HR) status. Survival, pattern of recurrence, and treatment response differ between HR-/HER2+ and HR+/HER2+ cancers. PURPOSE: To investigate imaging and clinicopathologic features of HER2+ cancers and their correlation with HR expression. MATERIAL AND METHODS: Between 2011 and 2013, 252 consecutive patients with 252 surgically confirmed HER2+ cancers (125 HR- and 127 HR+) were included. Two experienced breast radiologists blinded to the clinicopathologic fin...
Source: Acta Radiologica - October 17, 2016 Category: Radiology Authors: Song SE, Bae MS, Chang JM, Cho N, Ryu HS, Moon WK Tags: Acta Radiol Source Type: research

Value of multi-b value DWI in the assessment of early cerebral changes in asymptomatic HIV-positive adolescents.
CONCLUSION: Multi-b value DWI could reflect the early characteristics of water molecule diffusion in HIV infections. PMID: 27733641 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - October 12, 2016 Category: Radiology Authors: Jiang DZ, Zhou DY, Wu WQ, Wu GY, Quan H Tags: Acta Radiol Source Type: research

'Classic papers' from the Acta Radiologica archives.
PMID: 27605347 [PubMed - in process] (Source: Acta Radiologica)
Source: Acta Radiologica - September 11, 2016 Category: Radiology Authors: Skjennald A Tags: Acta Radiol Source Type: research

Acta Radiologica/Acta Radiologica Open: call for new Chief Editor.
PMID: 27605348 [PubMed - in process] (Source: Acta Radiologica)
Source: Acta Radiologica - September 11, 2016 Category: Radiology Authors: Skjennald A Tags: Acta Radiol Source Type: research

The new Acta Radiologica International Award for Best Scientific Manuscript.
PMID: 27605349 [PubMed - in process] (Source: Acta Radiologica)
Source: Acta Radiologica - September 11, 2016 Category: Radiology Authors: Skjennald A Tags: Acta Radiol Source Type: research

Some Remarks on Proc. Post. Tali.
PMID: 27605350 [PubMed - in process] (Source: Acta Radiologica)
Source: Acta Radiologica - September 11, 2016 Category: Radiology Authors: Baastrup CJ Tags: Acta Radiol Source Type: research

The Acute Bone Atrophy and Its Roentgen Picture.
PMID: 27605351 [PubMed - in process] (Source: Acta Radiologica)
Source: Acta Radiologica - September 11, 2016 Category: Radiology Authors: Baastrup CI Tags: Acta Radiol Source Type: research

Emergency Imaging: A Practical Guide.
PMID: 27605352 [PubMed - in process] (Source: Acta Radiologica)
Source: Acta Radiologica - September 11, 2016 Category: Radiology Authors: Koskinen S Tags: Acta Radiol Source Type: research

Differentiation of parathyroid carcinoma and adenoma by preoperative ultrasonography.
Abstract BACKGROUND: Parathyroid carcinomas (PTC) are very rare. There have been a few studies on the contribution of ultrasound (US) in the diagnosis of PTC compared with parathyroid adenomas (PTA). PURPOSE: To identify the differences between US findings of PTC and PTA in patients with primary hyperparathyroidism (PHPT). MATERIAL AND METHODS: We enrolled seven patients with PTC and 32 consecutive patients with PTA whose diagnoses were confirmed by surgery at our institution between March 1994 and June 2015. We retrospectively compared the US features of the two groups, as well as the demographic, clini...
Source: Acta Radiologica - September 8, 2016 Category: Radiology Authors: Nam M, Jeong HS, Shin JH Tags: Acta Radiol Source Type: research

Justification and active guideline implementation for spine radiography referrals in primary care.
n O Abstract BACKGROUND: Spinal disorders are a major public health problem. Appropriate diagnostic imaging is an essential part in the management of back complaints. Nevertheless, inappropriate imaging increases population collective dose and health costs without improving outcome. PURPOSE: To determine the effects of active implementation of referral guidelines on the number and justification of spine radiography in primary care in one city. MATERIAL AND METHODS: Specified guidelines for spine radiography were distributed to referring practitioners altogether three times during the study period. Educat...
Source: Acta Radiologica - September 8, 2016 Category: Radiology Authors: Tahvonen P, Oikarinen H, Niinimäki J, Liukkonen E, Mattila S, Tervonen O Tags: Acta Radiol Source Type: research

Are the increasing amounts of gadolinium in surface and tap water dangerous?
PMID: 27609906 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - September 8, 2016 Category: Radiology Authors: Thomsen HS Tags: Acta Radiol Source Type: research

Can the multiphasic computed tomography be useful in the clinical management of small renal masses?
Abstract BACKGROUND: Small renal masses (SRMs; ≤4 cm) represent a challenging issue. Computed tomography (CT) is widely used for investigating renal tumors even if its ability to differentiate among the different subtypes has not yet been definitively established. PURPOSE: To assess the potential role of the morphological features and angiodynamic behavior on multiphasic CT in the preoperative evaluation of SRMs. MATERIAL AND METHODS: The CT images of 80 patients with SRMs who underwent surgical resection at our institution were retrospectively reviewed. The morphological features, the pattern,...
Source: Acta Radiologica - September 6, 2016 Category: Radiology Authors: Gaudiano C, Schiavina R, Vagnoni V, Busato F, Borghesi M, Bandini M, Di Carlo M, Brunocilla E, Martorana G, Golfieri R Tags: Acta Radiol Source Type: research

The diagnostic value of 11C-methionine PET in hyperparathyroidism with negative 99mTc-MIBI SPECT: a meta-analysis.
CONCLUSION: By merit of the high overall sensitivity, specificity, and accuracy, 11C-methionine PET can potentially complement the diagnostic workup of patients with HPT and negative or inconclusive 99mTc-MIBI SPECT. 11C-methionine PET appears to be a promising diagnostic modality in complicated cases with HPT. PMID: 27589877 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - September 2, 2016 Category: Radiology Authors: Yuan L, Liu J, Kan Y, Yang J, Wang X Tags: Acta Radiol Source Type: research

'Classic papers' from the Acta Radiologica archives.
PMID: 27531919 [PubMed - in process] (Source: Acta Radiologica)
Source: Acta Radiologica - August 18, 2016 Category: Radiology Authors: Skjennald A Tags: Acta Radiol Source Type: research

Studies on the Influence of the Roentgen and Radium Rays on Phagocytosis.
PMID: 27531920 [PubMed - in process] (Source: Acta Radiologica)
Source: Acta Radiologica - August 18, 2016 Category: Radiology Authors: Westman A Tags: Acta Radiol Source Type: research

Investigations Regarding the Condition of the White Blood Corpuscles in Guinea-Pigs and Rabbits Exposed to Irradiation with Visible Rays.
PMID: 27531921 [PubMed - in process] (Source: Acta Radiologica)
Source: Acta Radiologica - August 18, 2016 Category: Radiology Authors: Sonne C Tags: Acta Radiol Source Type: research

Spot fluoroscopy: a novel innovative approach to reduce radiation dose in neurointerventional procedures.
CONCLUSION: The SF function is a new and promising tool for reduction of the radiation dose during neurointerventional procedures. PMID: 27522095 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - August 13, 2016 Category: Radiology Authors: Borota L, Jangland L, Åslund PE, Ronne-Engström E, Nyberg C, Mahmoud E, Sakaguchi T, Patz A Tags: Acta Radiol Source Type: research

Diagnostic reference levels in low- and middle-income countries: early "ALARAm" bells?
CONCLUSION: Published DRL data are deficient in the majority of LMICs, with the paucity most striking in low-income countries. DRL initiatives are required in LMICs to enhance dose optimization. PMID: 27519848 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - August 12, 2016 Category: Radiology Authors: Meyer S, Groenewald WA, Pitcher RD Tags: Acta Radiol Source Type: research

Reliability of postoperative MR imaging in the determination of level and side of lumbar spinal decompression surgery.
We examined factors that may have influenced the reliability, including demographics, type of surgical decompression, use of a drain, and time interval from surgery to MRI. RESULTS: Significantly fewer levels were correctly determined by the resident (77/86 cases, 89.5%) compared with the radiologist (84/86 cases, 97.7%) (P = 0.014). The resident interpreted significantly more MR images incorrectly in cases where a drain was used (n = 8; P 
Source: Acta Radiologica - August 11, 2016 Category: Radiology Authors: Wanivenhaus F, Buck FM, Betz M, Farshad-Amacker NA, Farshad M Tags: Acta Radiol Source Type: research

'Classic Papers' in this issue of Acta Radiologica.
PMID: 27378346 [PubMed - in process] (Source: Acta Radiologica)
Source: Acta Radiologica - July 7, 2016 Category: Radiology Authors: Skjennald A Tags: Acta Radiol Source Type: research

A Case of Calculous Pericarditis.
PMID: 27378347 [PubMed - in process] (Source: Acta Radiologica)
Source: Acta Radiologica - July 7, 2016 Category: Radiology Authors: Amundsen P Tags: Acta Radiol Source Type: research

The Roentgen Diagnosis of Ulcus Duodeni with Respect to the Local Direct Roentgen Symptoms.
d Å PMID: 27378348 [PubMed - in process] (Source: Acta Radiologica)
Source: Acta Radiologica - July 7, 2016 Category: Radiology Authors: Åkerlund Å Tags: Acta Radiol Source Type: research

Evaluation of a corrected implementation of a method of simulating pulmonary nodules in chest tomosynthesis.
CONCLUSION: The computer code including a correct rounding function generates simulated nodules that are more visually realistic than simulated nodules generated using the uncorrected computer code, but have a slightly different detection rate compared to real nodules. PMID: 27382042 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - July 4, 2016 Category: Radiology Authors: Svensson F, Söderman C, Svalkvist A, Rossi Norrlund R, Vikgren J, Johnsson ÅA, Båth M Tags: Acta Radiol Source Type: research

Announcement.
PMID: 27298480 [PubMed - in process] (Source: Acta Radiologica)
Source: Acta Radiologica - June 16, 2016 Category: Radiology Authors: Skjennald A Tags: Acta Radiol Source Type: research

Xenia Forsselliana 2015.
PMID: 27298481 [PubMed - in process] (Source: Acta Radiologica)
Source: Acta Radiologica - June 16, 2016 Category: Radiology Authors: Skjennald A Tags: Acta Radiol Source Type: research

'Classic papers' in this issue of Acta Radiologica.
PMID: 27298482 [PubMed - in process] (Source: Acta Radiologica)
Source: Acta Radiologica - June 16, 2016 Category: Radiology Authors: Skjennald A Tags: Acta Radiol Source Type: research

Roentgenological Examinations of the Motility of the Stomach in Healthy Individuals during Rest and Motion.
PMID: 27298483 [PubMed - in process] (Source: Acta Radiologica)
Source: Acta Radiologica - June 16, 2016 Category: Radiology Authors: Nielsen AA Tags: Acta Radiol Source Type: research

The Definite Form of the Coxa Plana.
m H PMID: 27298484 [PubMed - in process] (Source: Acta Radiologica)
Source: Acta Radiologica - June 16, 2016 Category: Radiology Authors: Waldenström H Tags: Acta Radiol Source Type: research

Patellar position in weight-bearing radiographs compared with non-weight-bearing: significance for the detection of osteoarthritis.
Abstract BACKGROUND: Diagnosis and treatment of patellofemoral disorders including osteoarthritis are currently often based on imaging and clinical assessment with patients in the supine position. PURPOSE: To evaluate differences in patellar position in the trochlear groove and to assess the detection of medial and lateral patellofemoral (PF) osteoarthritis (OA) on axial radiographs in supine and standing positions, respectively. MATERIAL AND METHODS: Thirty-five women and 23 men (mean age, 56 years; age range, 18-87 years) referred for routine radiographic examinations of the knees were included. Axial ...
Source: Acta Radiologica - June 10, 2016 Category: Radiology Authors: Skou N, Egund N Tags: Acta Radiol Source Type: research

Feasibility study of reduced field of view diffusion-weighted magnetic resonance imaging in head and neck tumors.
CONCLUSION: The application of rFOV DWI in patients affected by HN tumors is feasible and promising, based on both qualitative and quantitative analyses. This technique has potential for improving the diagnostic accuracy of fFOV-DWI for the study of specific tumoral areas. PMID: 27287402 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - June 10, 2016 Category: Radiology Authors: Vidiri A, Minosse S, Piludu F, Curione D, Pichi B, Spriano G, Marzi S Tags: Acta Radiol Source Type: research

Radiation exposure in patients treated with endovascular aneurysm repair: what is the risk of cancer, and can we justify treating younger patients?
CONCLUSION: Treating younger patients with EVAR poses a low ACR of 0.65% (15-year standard surveillance) compared to a lifetime cancer risk of 44%. A simplified surveillance should be used if treating younger patients, which will halve the ACR over 15 years. PMID: 27279268 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - June 8, 2016 Category: Radiology Authors: Nyheim T, Staxrud LE, Jørgensen JJ, Jensen K, Olerud HM, Sandbæk G Tags: Acta Radiol Source Type: research

Accumulation of 11C-methionine in the normal pituitary gland on 11C-methionine PET.
CONCLUSION: MET shows strong accumulation in normal pituitary gland. PET/CT would thus be feasible to differentiate between normal and abnormal pituitary glands. PMID: 27273374 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - June 6, 2016 Category: Radiology Authors: Tomura N, Saginoya T, Mizuno Y, Goto H Tags: Acta Radiol Source Type: research

Detection of pulmonary embolism using repeated MRI acquisitions without respiratory gating: a preliminary study.
CONCLUSION: Our unenhanced MRI protocol shows a high sensitivity and specificity for PE, but further studies are required before considering it as a safe diagnostic test. PMID: 27273375 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - June 6, 2016 Category: Radiology Authors: Nyrén S, Nordgren Rogberg A, Vargas Paris R, Bengtsson B, Westerlund E, Lindholm P Tags: Acta Radiol Source Type: research

Abnormalities in gray and white matter volumes associated with explicit memory dysfunction in patients with generalized anxiety disorder.
CONCLUSION: This study demonstrated the regional volume changes on whole-brain GM and WM and the correlation between the brain structural alteration and explicit memory dysfunction in GAD patients. These findings would be helpful to understand the association between the brain structure abnormality and the functional deficit in the explicit memory in GAD. PMID: 27273376 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - June 6, 2016 Category: Radiology Authors: Moon CM, Jeong GW Tags: Acta Radiol Source Type: research

'Classic papers' from the Acta Radiologica archives.
PMID: 27161152 [PubMed - in process] (Source: Acta Radiologica)
Source: Acta Radiologica - May 11, 2016 Category: Radiology Authors: Skjennald A Tags: Acta Radiol Source Type: research

Clinical Examinations of a 4 hours' Roentgen Retention.
PMID: 27161153 [PubMed - in process] (Source: Acta Radiologica)
Source: Acta Radiologica - May 11, 2016 Category: Radiology Authors: Eiken T Tags: Acta Radiol Source Type: research

The Treatment of Myoma Uteri and Menorrhagia with Radium and Roentgen Rays.
PMID: 27161154 [PubMed - in process] (Source: Acta Radiologica)
Source: Acta Radiologica - May 11, 2016 Category: Radiology Authors: Heyerdahl SA Tags: Acta Radiol Source Type: research

'Classic papers' from the Acta Radiologica archives.
PMID: 27076399 [PubMed - in process] (Source: Acta Radiologica)
Source: Acta Radiologica - April 16, 2016 Category: Radiology Authors: Skjennald A Tags: Acta Radiol Source Type: research

Visipaque - a Step Forward: A historical review.
e;n T PMID: 27076400 [PubMed - in process] (Source: Acta Radiologica)
Source: Acta Radiologica - April 16, 2016 Category: Radiology Authors: Almén T Tags: Acta Radiol Source Type: research

Duplex ultrasound for identifying renal artery stenosis: direct criteria re-evaluated.
CONCLUSION: The RAR ≥2.6 is a more sensitive criterion than traditional RADUS criteria when screening patients with clinical suspicion of RAS. PMID: 27069093 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - April 10, 2016 Category: Radiology Authors: Zachrisson K, Herlitz H, Lönn L, Falkenberg M, Eklöf H Tags: Acta Radiol Source Type: research

Vertebral bone marrow diffusivity in healthy adults at 3T diffusion-weighted imaging.
Abstract BACKGROUND: There has been controversy surrounding the relationship between diffusivity and age in vertebral bone marrow. In particular, gender-related factors that influence the vertebral bone marrow conditions have not yet been identified. PURPOSE: To determine the age- and gender-related diffusivity changes of the lumbar bone marrow by measuring the apparent diffusion coefficient (ADC) values. MATERIAL AND METHODS: A total of 125 healthy adult volunteers were enrolled in this study. Sagittal magnetic resonance (MR) diffusion-weighted imaging (DWI) of the lumbar spine was performed. The ADC va...
Source: Acta Radiologica - April 10, 2016 Category: Radiology Authors: Jie H, Hao F, Na LX Tags: Acta Radiol Source Type: research

Adverse effects of metallic artifacts on voxel-wise analysis and tract-based spatial statistics in diffusion tensor imaging.
CONCLUSION: Metallic implants existing outside the field of view produce artifacts that affect the statistical analysis (voxel-wise group comparisons) for FA mapping. When statistical analysis for FA mapping is conducted by researchers, it is important to pay attention to any dental implants present in the mouths of the participants. PMID: 27069095 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - April 10, 2016 Category: Radiology Authors: Goto M, Abe O, Hata J, Fukunaga I, Shimoji K, Kunimatsu A, Gomi T Tags: Acta Radiol Source Type: research

Apparent diffusion coefficient values are superior to transrectal ultrasound-guided prostate biopsy for the assessment of prostate cancer aggressiveness.
Abstract BACKGROUND: Few studies have focused on comparing the utility of diffusion-weighted imaging (DWI) and transrectal ultrasound (TRUS)-guided biopsy in predicting prostate cancer aggressiveness. Whether apparent diffusion coefficient (ADC) values can provide more information than TRUS-guided biopsy should be confirmed. PURPOSE: To retrospectively assess the utility of ADC values in predicting prostate cancer aggressiveness, compared to the TRUS-guided prostate biopsy Gleason score (GS). MATERIAL AND METHODS: The DW images of 54 patients with biopsy-proven prostate cancer were obtained using 1.5-T m...
Source: Acta Radiologica - April 6, 2016 Category: Radiology Authors: Li C, Chen M, Wang J, Wang X, Zhang W, Zhang C Tags: Acta Radiol Source Type: research

Is multidetector computed tomography comparable to magnetic resonance imaging for assessment of lumbar foraminal stenosis?
CONCLUSION: MDCT was comparable to MRI for diagnosis and assessment of LFS, especially for experienced observers. However, there was a tendency to overestimate the degree of LFS on MDCT compared with MRI. PMID: 27055917 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - April 6, 2016 Category: Radiology Authors: Kang WY, Ahn JM, Lee JW, Lee E, Bae YJ, Seo J, Kim J, Kang HS Tags: Acta Radiol Source Type: research

Clinical application of Acoustic Radiation Force Impulse Imaging with Virtual Touch IQ in breast ultrasound: diagnostic performance and reproducibility of a new technique.
CONCLUSION: ARFI imaging with VTIQ is a novel, moderately reproducible, quantitative elastography technique, which provides useful information for the differentiation of benign and malignant breast lesions in the clinical setting. PMID: 27055918 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - April 6, 2016 Category: Radiology Authors: Kapetas P, Pinker-Domenig K, Woitek R, Clauser P, Bernathova M, Spick C, Helbich T, Baltzer PA Tags: Acta Radiol Source Type: research

Non-Gaussian diffusion imaging for malignant and benign pulmonary nodule differentiation: a preliminary study.
CONCLUSION: The initial results of this study indicate the feasibility of DKI in human lungs. However, there was no significant benefit of DKI derived MK values over ADC for malignant and benign pulmonary nodule differentiation. PMID: 27055919 [PubMed - as supplied by publisher] (Source: Acta Radiologica)
Source: Acta Radiologica - April 6, 2016 Category: Radiology Authors: Das SK, Yang DJ, Wang JL, Zhang C, Yang HF Tags: Acta Radiol Source Type: research

Determination of the electrical conductivity of human liver metastases: impact on therapy planning in the radiofrequency ablation of liver tumors.
Abstract BACKGROUND: Radiofrequency ablation is used to induce thermal necrosis in the treatment of liver metastases. The specific electrical conductivity of a liver metastasis has a distinct influence on the heat formation and resulting tumor ablation within the tissue. PURPOSE: To examine the electrical conductivity σ of human colorectal liver metastases and of tumor-free liver tissue in surgical specimens. MATERIAL AND METHODS: Surgical specimens from patients with resectable colorectal liver metastases were used for measurements (size of metastases
Source: Acta Radiologica - April 6, 2016 Category: Radiology Authors: Zurbuchen U, Poch F, Gemeinhardt O, Kreis ME, Niehues SM, Vahldieck JL, Lehmann KS Tags: Acta Radiol Source Type: research